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https://spaceweather.com/ May 3, 2022
X-CLASS SOLAR FLARE:
An active sunspot is emerging over the sun's southeastern limb. It announced itself today with an X1.1-class solar flare (May 3rd @ 1325 UTUT). NASA's Solar Dynamocs Observatory (SDO) recorded the extreme ultraviolet flash:
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In Argentina, photographer Eduardo Schaberger Poupeau was already pointing his solar telescope at the sun when the flare occured. "At that very moment I was trying to photograph new sunspot AR3004," says Poupeau. "Suddenly I received an X-flare alert on my smartphone. I quickly switched to the sun's southeastern limb where debris thrown up by the flare was still very bright."



The sunspot responsible for today's blast has been visible for less than a day. Already it has unleashed has unleashed 8+ solar flares (more than six Cs, one M and one X). Future flares will become increasingly geoeffective as the active region turns toward Earth.
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NASA Sending Nude Drawings of Humans to Space in Attempt to Contact Aliens
BYMACKENZIE CUMMINGS-GRADY
May 04, 2022
https://www.complex.com/life/nasa-sending-nude-drawings-humans-space-contact-aliens
NASA will soon be sending nudes to space in order to attract attention from aliens, UK tabloid The Sun reports. according to a study released by the space administration.

A study was published explaining that the images won’t be nude photographs of actual people, but rather pixelated nude stencils of a man and a woman next to a drawing of their DNA. The sketches will be sent out as part of NASA’s “Beacon in the Galaxy” project, which aims to send a message to alien civilizations that could exist in the Milky Way.

The male and female outlines will be waving hello, with each drawing attached as part of a binary coded message asking alien lifeforms to make contact. Scientists believe the binary code could be extensively understood by extraterrestrials.

“Though the concept of mathematics in human terms is potentially unrecognizable to extra-terrestrial intelligence, binary is likely universal across all intelligence,” the study reads. “Binary is the simplest form of mathematics as it involves only two opposing states: zero and one, yes or no, black or white, mass or empty space.”


Per NASA’s study, The proposed message includes basic mathematical and physical concepts to establish a universal means of communication followed by information on the biochemical composition of life on Earth, the Solar System’s time-stamped position in the Milky Way relative to known globular clusters, as well as digitized depictions of the Solar System, and Earth’s surface.”

This isn’t the first time NASA used naked sketches of humans in order to try and make alien contact. The Pioneer plaques sent to space on the 1972 Pioneer 10 and 1973 Pioneer 11 missions also included drawings of naked humans.

The latest attempt at extraterrestrial contact comes as NASA plans to retire its three International Space Stations in 2030 and plunge them into the Atlantic Ocean in order to make room for the private sector.

“The private sector is technically and financially capable of developing and operating commercial low-Earth orbit destinations, with NASA’s assistance,” said Phil McAlister, director of commercial space at NASA Headquarters. “We look forward to sharing our lessons learned and operations experience with the private sector to help them develop safe, reliable, and cost-effective destinations in space.”

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MAY 10, 2022
A Q+A with Carlos Moura, President of Brazil’s Space Agency
By Ryan Duffy
https://payloadspace.com/a-qa-with-carlos-moura-president-of-brazils-space-agency/
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Carlos Moura is president of the Brazilian Space Agency (AEB). In April, we sat down with Moura to discuss the country’s space priorities.

  • Last week, Brazil announced an agreement with Innospace, a South Korean rocket startup. Innospace aims to launch the first suborbital test flight of its HANBIT TLV rocket from Brazil’s Alcântara Spaceport in Q4 of this year.
  • Next week, AEB will help host an event aimed at promoting space development in Latin America.
  • Marcos Pontes, Brazil’s lone astronaut, visited the ISS in 2006. Pontes currently serves as the country’s minister of science, technology, and innovation. Yesterday, Blue Origin announced that a second Brazilian—civil production engineer Victor Correa Hespanha—will soon go to space on the NS-21 flight.
“Brazil is one of the few countries that can act in all segments of space,” Moura told Payload, with a track record in EO, suborbital sounding rockets, microgravity experiments, and ground stations.

  • Building off that base: Moura believes Brazil can do a better job in developing domestic downstream space applications for its agribusiness and energy sectors. That’d help Brazil develop its own supply chains and further capitalize on R&D efforts.
  • Rocketry: Brazil is developing its own nanosatellite launcher. A sovereign orbital capability “is something that we believe we should have,” Moura said.
  • Open for business: AEB and the Brazilian Air Force are in the process of opening up the Alcântara spaceport to foreign launchers.
  • To the moon: Brazil, an Artemis signatory, aims to “have a medium- and long-term vision of how we can join the other countries and really participate” in lunar exploration efforts, Moura said.
Find our full conversation with Moura below. NB: This interview was edited for clarity and length.

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Images: AEB. Left: Moura | Right: Alcântara Space Center.
Walk me through Brazil’s space history.

Brazil has acted in space since the ‘60s, mostly in R&D. I’d say that we are good at suborbital launches, microgravity experiments, and Earth observation. Those are areas where we have already established a market and things that we’re good at. But we should do a lot more.

Brazil is one of the few countries that can act in all segments of space. We can do spacecraft, satellites, and rockets. We can launch from our bases and we have a network of ground stations.

Downstream, we are not as good. Why not? Maybe because our view was to focus on science and technology, but not the business. Now, we are trying to change the mindset. We’re organizing events, including the SpaceBR Show on May 17–19, where we’ll gather the industries, national organizations, academia, government, and defense. We’ll show them that we’re a great consumer of space projects.

Why not take advantage of our whole market and strong economic sectors, like agribusiness, oil & gas, mining? Why can’t we develop applications for them instead of just buying from outside? I believe we are in a good place to invest and find new partnerships, not only for our internal market but as a platform for the whole supply chain.

Are there specific areas of the Brazilian space industry that you want to cultivate in the near-future? As you say, the country has a long history with sounding rockets and EO.

Upstream, I would say that we want to upgrade our capabilities, in terms of rocketry and launch centers. We want to really open our country as a commercial spaceport. We believe we can have the first commercial launch from our country this year. That’s access to space. We’re also developing our nanosatellite launcher, which is something that we believe we should have.

A domestic launch capability?

Yes, at least for nanosatellites and microsatellites.

And which rocket is that?

We have one project that’s being done with Germany called VLM, but we have some other projects on the shelf that we are trying to update. [VLM = Microsatellite Launch Vehicle.]

How about satellites?

We launched one in February 2021—Amazônia 1—with a bus that weighs about 250 kilos. It’s good for small satellites, up to 500–700 kilos. The bus is performing very well, so we’re confident on that.

We believe we can invest more in nanosatellites. To give you an idea, we have 10 nanosatellites being produced in Brazil, coming from academia, small companies, and governments, and a wide range of applications. [Ed. note: Shortly before this conversation in Colorado Springs, the University of Brasilia launched the AlfaCrux satellite on Transporter-4, with mission logistics managed by Exolaunch.]

Concerning applications, we believe agribusiness and energy will be the main consumers. Some institutes in Brazil are mapping our potential, in terms of offshore energy. It’s about 10 times the amount of energy we presently use. We don’t need offshore but it may be used to produce oxygen and hydrogen.

We have some specific niches in Brazil where we can more intensely use [this data]. Because of the war, we may come up short on [agribusiness inputs]. The idea is to reinvest in Brazil in order to produce fertilizers, defensives, like so. And how to use it more efficiently. In this case, space systems can help with more efficient agriculture.

Because you mentioned it, how has the war changed your thinking on space supply chains? Has it affected the agency?

We’ve always advocated that space systems are something that is strategic for the country. We should not depend exclusively on products from the outside. We should have relative sovereignty for our systems. I believe that among our political leaders, we have a better understanding that we should invest a little bit more on our capabilities. We should have our small launcher, and the conditions to produce most of the equipment that can be used to produce nanosatellites.

Understood. Can you say a bit more about the Alcântara Space Center? How badly did I pronounce that?

Alcântara, as you know, is run by the Air Force. It’s not easy for us to adjust [and figure out] how to conform a military station to provide commercial services. The idea is that we should have in the near-future a state-owned company that will act as a commercial entity.

Before that, because the company is not ready, what we are doing as an agency is taking care of all the regulation, licensing, and matchmaking. We’re looking for synergy between the institutions. The Air Force is trying to accomodate this activity.

Alcântara does not have a tough schedule. You have a lot of slots that can be used by everybody. What we are finding is that most of the companies do not need to be in our country for a long time. They want to arrive, use it for a few weeks, and then get out.

Some of them are really planning, if everything goes okay, to invest in their own facilities. That’s why the government and ministries are organizing this, in order to upgrade the infrastructure in the city. The city is very small and very poor, so the infrastructure needs to be upgraded.

There’s an interesting parallel in Texas, where I’m from. In the south, there wasn’t infrastructure in Boca Chica, before SpaceX started building their Starbase. You need the local economy, too.

Yeah, we should help and work together.

Our readers are mostly within the space bubble, but I’d still wager that most of our audience doesn’t know that a Brazilian astronaut [Marcos Pontes] has been to the ISS. What did that mission mean for Brazil, and the space program in particular? I’d imagine it was a huge inspiration.

For sure. All astronauts are [a kind of space] ambassadors. Marcos Pontes is an ambassador and source of inspiration, but he’s also been in the role of minister of science, technology and innovation for three years and three months.

He’s emphasized a lot of things that we should take care of and do in Brazil, and not just in space. Under his leadership, we have 28 institutes in Brazil across many science and technology efforts. So, I believe he has performed very well.

Unfortunately, he was the unique astronaut in Brazil. After him, the Brazilian space program did not have the budget to continue and invest. And we did not take the opportunity to really participate in the construction of the [space] station. By the 1990s, we were supposed to help form some of the parts of the ISS—but we lost a lot of the opportunities.

Now that we have joined Artemis, the idea is to be more consistent with our proposals. We want to have a medium- and long-term vision of how we can join the other countries and really participate in the Artemis efforts. People who go to the moon will need food, rations, logistics, and communication. It’s important for Brazil to participate in those actions and find solutions to challenges that will be presented in the exploration of the moon.

A lot. There’s a lot of logistics.

What we want to do is to call up not only the scientific part of Brazilian capabilities, but the important economic domains—food production, mining—and tell them: “You have a very nice opportunity to explore the moon. How can you join us?”

So that’s what we are trying to do: call the other economic sectors in Brazil and try to show them that they can invest, initially with scientific missions, and eventually take these long-term visions and participate with the other countries.

Glad you mentioned Artemis, that was on my list. Before we close, anything else you’d like to add?

Take the example of Artemis. We already have a project with NASA to develop a nanosatellite to investigate the ionosphere. We proposed, and they accepted, to use the same kind of arrangement to study the climate around the moon. That’s the idea, to continue working together and opening new opportunities. Our work is to get in contact with new people. How can we work together, with NASA, JAXA, and others, to do things under our scope and capabilities?


 
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BlackSky’s Brian E. O’Toole on Space’s “Internet Moment”
By Ryan Duffy
https://payloadspace.com/blackskys-brian-e-otoole-on-spaces-internet-moment/
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BlackSky (NYSE:BKSY) is a geospatial intelligence and continuous monitoring company. The Herndon, VA-based space company has been in the news at fairly regular intervals in recent months, due to its role in supplying open-source imagery and intelligence related to Ukraine.

Payload sat down with BlackSky CEO Brian O’Toole at Space Symposium earlier this week to discuss Ukraine, agile space, software-driven development, expanding from government to commercial sales, and what O’Toole called space’s “internet moment.” Some context, before diving in:

  • BlackSky went public via reverse merger in the fall of 2021, and like many space SPAC compadres, the company has underperformed as a publicly traded entity (-57% YTD).
  • By the same token, BlackSky has been steadily expanding its constellation of Earth-observing satellites, developing its Spectra AI analytics suite, and staffing up on the sales and marketing side.
  • Just last Saturday, April 2, Rocket Lab (NASDAQ:RKLB) launched two new BlackSky birds. The two have been launching satellites at a rapid clip over the last six months or so.
Find Payload’s full convo with O’Toole below. Note: This interview has been edited for length and clarity.

You just launched two birds with Rocket Lab on Saturday. In recent missions, you’ve seemed to emphasize how quickly your satellites start operating and, your words, “generating revenue.” Why?

We had imagery in about 10 or 12 hours this time around, which is amazing. From factory to imagery in customers’ hands in a matter of a few weeks. And we launched six satellites on three different rockets in our campaign this fall. All within a 20-day period.

In every case, satellites were put into revenue-generating operations in about 48 hours. This is unprecedented, right?

That’s what we’re all about: speed to insights. Agile space means we can get capacity on orbit where and when we need it and then get the data into the hands of our customers. Ultimately, we’re about giving our customers this first-to-know advantage.

We’ve designed the constellation so that’s in a unique dawn-to-dusk orbit. We can look at things dawn-to-dusk every hour, which is unique, and enable that through software. Someone could log in, task a satellite through a browser, and get imagery and analytics. All in about 90 minutes.

Are your customers only using web browsers to access this info?

They can log into our browser or online platform through a device. In other cases, they can access it through third-party platforms like Palantir. We’re making it accessible where people live. Without very much training, they can type in a location they want, point, and click. Then they get an alert that their image is ready. That’s a game-changing customer experience that didn’t exist until recently.

This is a question I’ve had for a lot of your counterparts recently. And maybe it’s a chicken-or-egg problem of sorts. How do you build the analytical layer—you know, Spectra AI—before you have a critical mass of satellites? How did you train your models and get to a production-ready level of performance?

We started 8 years ago. I founded the predecessor company, where we took a software-first approach and started building a platform that not only took in our data, but also other satellite and IoT data. Back then, we knew it was the analytics and easy-to-use accessibility [that would set us apart]. Now, we’re just layering in more AI and data sources.

So, you wrote the software before you launched all the satellites.

Most companies have not done that. They’ve focused on hardware, then figured out how to monetize it after the fact. We took it the other way around.

To me, we’re in this new commercial space age era. We went from handfuls of satellites in orbit a couple years ago to hundreds and thousands. It’s not about all those sensors, but what you do with all of that data. To me, that’s where the biggest market opportunity is.

Do you subscribe to the view at all that this type of data could become a commodity? And that it’s the analytical layer where you win?

If you stick with a business model where it’s selling pictures, I think that’s going to be challenging. We take the opposite view and focus on data and insights. People want data faster and faster. They want to move up the value chain, in terms of the level of information, right? I think that will create a flywheel effect that goes beyond commodity data.

On the Russia-Ukraine war, and BlackSky’s Business
How did Russia’s invasion of Ukraine affect BlackSky’s business and demand for your services? Did it change your strategy?

Didn’t change strategy. We were moving along at a really good growth rate and we already serve most of the most important government customers, both in the US and around the world. From a global demand perspective, I think you’ll agree this event shows the world now understands the need for this real-time GEOINT capability more than ever.

We also have a lot of commercial customers who are interested in what’s happening to the supply chain, and tracking economic impacts. We’re doing a lot to support humanitarian efforts. But fundamentally, I think our business strategy hasn’t changed.

BlackSky’s Tech Analogy
It’s been pretty remarkable to watch the degree to which all of this space imagery and data has shaped the world’s perception and understanding of the war. It feels like a coming of age moment for the industry, no?

I think space is having its internet moment right now. In the early days of the internet, all the money was going into optical networks, infrastructure to build websites, blah blah blah. Nobody envisioned the Airbnbs and Wazes of the world that came out of that.

We’re at that point in this industry. Launch infrastructure is there. Satellite production infrastructure is there. And communication networks are there.

And now, as I mentioned, we’re headed to a future with thousands of sensors [in space]. Bundle all these location-enabled IoT devices into that, and it will completely change the way we see and understand the world. We haven’t even imagined the applications that are going to come out of that over the next three, five, ten years.

I think most people believe that when you look at what’s transpired in the last 24 months with companies like ours, it shows that this is here. It works, it’s viable, and it will now power a whole new industry. That’s what we’re looking forward to, and it’s why we’ve taken a software approach. That’s the next frontier.

I like the analogy of the iPhone and the transition for 3G to 4G networks. As Apple and telcos made the upgrade, and billions were invested in infrastructure, nobody could have predicted that Uber or Snapchat were what came next.

Even think about the iPhone itself. Like many others, we have taken a vertically integrated approach. The satellite model of the old days was to start raising money and think about building these big things that would take you five to seven years.

Now, we can iterate satellite technology every 24 months. We have a Gen-3 capability we’re launching in about a year. It’s the same relative size and cost, but will improve imaging resolution from a meter down to 50 centimeters with IR capability. Plus, a bunch of other features. So, that analogy of hardware married up with the app and data accessibility is totally right on.

On the upgrades and iterating…Is that a function of reaching sort of volume production or is it more from a secular trend like Moore’s Law? Is it the improving quality of sensors? Or a little bit of everything?

In our mind, three big things have happened.

#1: Access to space through affordable launch has been huge. That will get cheaper as more and more launch providers come into the market.
#2: We demonstrated the economics of small satellites. We can deliver imagery now from a satellite that’s the size of a dorm-room refrigerator, that used to be the size of a school bus.
#3: Software. All of this is enabled through software. And the data that results is affordable. I think data affordability and access will be the biggest growth drivers.

Is demand outstripping supply in any way?

It’s not a concern for us, because we don’t have a capacity-constrained model. We use software to only collect what customers want. We only take pictures of the most important strategic and economic locations. I think it’s something like 90% of the world’s GDP takes place on about less than 15% of the landmass. We don’t have a model where you paint the whole world…we only shoot those economically important locations. And we can sell that many times.

That was my next question, the one-to-many model.

We also demonstrated in the last four months that we can scale capacity with demand. We just put up eight satellites in four months, doubling our capacity. It’s a completely different ballgame now.

No capacity constraints, focusing on speed and strategically important places, and capabilities like change detection…are there other aspects of BlackSky’s model that are unique to you?

We’re combining other data already. We integrate with SAR data, for example. For customers, we’re doing 24/7, all-weather autonomous surveillance with EO and SAR, and applying analytics to that. We’ll keep adding more and more data sources and more AI.

That’s where this industry is headed. Frankly, most customers don’t want to buy pictures. What are they looking for? Change detection. Tell me when my supply chain will get disrupted, when there’s a backup at this facility, or how a certain development could affect commodity prices.

It’s the ability to anticipate what’s going to happen and then alerting on those changes that matter.

“Just give me the answer.”
What share of BlackSky’s customer base wants the underlying raw data vs. the analytics?

There’s government customers who want the raw data because they’ve already had the infrastructure to do something with it. But they’re now demanding that analytics come with it, because the volume of the data is outpacing their ability to analyze it.

There’s the data, there’s the derived data, then there’s “just give me the answer.” Most of the commercial market just wants [the latter], the report on X happening or the impact of Y on my assets. They don’t want to process pixels or fuse all that data. It’s not their business. Insurance guys just want to know: “What’s the damage to my assets?” They want to know what was damaged and where there’s routes to get people in to start doing recovery.

Has that segment been the focus of BlackSky’s sales and marketing push?

It is now. We started out in government and are a trusted provider to that market. There’s only a few of us in the world that do that. We brought in a chief commercial officer last year, so we’re really ramping that up. And we stood up an innovation center that can do rapid solution development. A lot of what you’re seeing in the media is coming from that team. They look at the data, do a quick analysis, and then get it into the hands of customers in a hurry.

Do you find that there are verticals that need something like BlackSky but aren’t even aware of it? Where do you have to educate the market, or where might the product not sell itself?

The demand is there and we have a lot of incoming interest from different industries all the time. Where they’re unaware is where, typically on a call, they’ll say “I would like to have satellite imagery to do X.” They’re asking what X is, but what they’re really trying to do is Y. [They want the “just give me the answer,” not the data or derived data.] I think companies are surprised to find out that they can get a username and password, log in, and then get imagery and analytics in 90 minutes.


 
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spaceweather.com
A MIXED-UP SUNSPOT:


Sunspot AR3006 is having an identity crisis. It is supposed to have a +/- magnetic field. Mostly it does. But deep inside the sunspot's primary core, the polarity is opposite: -/+. Note the circled region in this magnetic map of the sunspot from NASA's Solar Dynamics Observatory:



The mixture of magnetic polarities makes this sunspot interesting and dangerous. When opposite polarities bump together, it can light the fuse of magnetic reconnection--the explosive power source of solar flares. If AR3006 flares today, it will be geoeffective. The sunspot is directly facing Earth.

Update: The sunspot *did* flare today. An X1.5 class explosion on May 10th (1355 UT) caused a radio backout over the Atlantic Ocean and may have hurled a complicated CME toward Earth.
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Starliner successfully launches, reaches a stable orbit [Updated]
"The teams are ready. Boeing is ready. ULA is ready."
ERIC BERGER - 5/19/2022, 9:17 AM
https://arstechnica.com/science/202...liner-takes-to-the-skies-probably/?comments=1
Photo-May-18-3-55-30-PM-800x534.jpg

7:30 pm ET Update: Starliner made it!

At the appointed time on Thursday evening, the Atlas V rocket carrying the Starliner spacecraft lifted off from Cape Canaveral Space Force Station in Florida. After the rocket dropped the Starliner spacecraft off at an altitude of 181 km, the spacecraft's on-board propulsion system took over, raising Starliner into a stable, circular orbit.

The Boeing spacecraft is presently targeted to dock with the International Space Station at around 7:10 pm ET on Friday.

Original post: Today's the day for Boeing's Starliner spacecraft to take to the skies. Unless it's not.

Nearly 29 months have passed since the company's first attempt to demonstrate that Starliner could safely launch into orbit, fly up to the International Space Station and dock, and then return to Earth in a New Mexico desert beneath three parachutes. During that December 2019 test flight, of course, there were myriad software problems, and Starliner ended up lacking the fuel to rendezvous with the space station.

As part of its fixed-price contract with NASA—the space agency is paying about $5.1 billion to Boeing to develop a crew transport system to the space station—the company agreed to redo the demonstration flight. Boeing thought it was ready for this repeat flight last August, but hours before launch more than a dozen valves in Starliner's propulsion system became stuck. The attempt was called off, so Boeing never got to test its revised software code.

FURTHER READING
Former NASA leaders praise Boeing’s willingness to risk commercial crew
Since August Boeing and NASA have worked to understand the valve problem, which turned out to be due to ambient humidity that caused corrosion inside the valves. Engineers then implemented fixes. Because of this additional delay, Boeing has taken a $600 million loss to fly this second demonstration mission, known as Orbital Flight Test-2.

Today's launch is scheduled to take place at 6:54 pm ET (22:54 UTC) on top of an Atlas V rocket from Cape Canaveral Space Force Station. Coverage of the launchwill begin at 6 pm ET on NASA Television. The weather looks generally favorable, with a 70 percent chance of "go" conditions during the instantaneous launch window.

Lori Garver said she believed the company probably would not undertake the program if it had a chance to do it all again. The sooner Boeing can get Starliner into an operational status, therefore, the better it will be financially, as it can serve both NASA as well as bring on additional private market customers.

The space agency, meanwhile, would very much like a second means of reaching the space station. It is confident in the capability of SpaceX's Crew Dragon vehicle—for which NASA paid $3.1 billion and has been safely flying astronauts since mid-2020—but with uncertainty in Russia the space agency can no longer count on access to the Soyuz vehicle.
One of NASA's astronauts who will fly on an early Starliner mission, Butch Wilmore, said during a news conference Wednesday that Boeing and the space agency were confident ahead of Thursday's launch attempt. "This spacecraft is ready," he said. "The teams are ready. Boeing is ready. ULA is ready. The mission ops folks that will control the spacecraft in space are ready. And we’re excited.”

If all goes well with the launch, the uncrewed Starliner spacecraft will dock with the space station on Friday, at 7:10 pm ET (23:10 UTC). Doing so will enable Starliner and its heavily revised software to pass a key test for NASA. After several days attached to the station, Starliner is scheduled to fly back to Earth next week. Success with the overall mission would likely set up a crewed launch test for Starliner during the first half of 2023.
 
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LEO, Startups, Technology
MAY 19, 2022
Exclusive: Phase Four Inks Deal to Scale Production
By Ryan Duffy
https://payloadspace.com/phase-four-production/
Phase-Four.jpg

El Segundo-based Phase Four today finalized a lease to build a second factory and scale production of its Maxwell engine product line. The new Hawthorne facility will be over 3X larger than Phase Four’s current plant, and capable of cranking out 100 engines a year.

Phase Four’s founding vision was to create a new type of propulsion for constellation operators, CEO Beau Jarvis told Payload. The company now sees a big opportunity to reinvent propulsion systems and their supply chains by switching to cheaper, easier-to-source fuel.

The pitch
Phase Four is developing electric propulsion systems with four key differentiators:

  1. Quicker time-to-market/orbit (sub-four month lead times)
  2. Mass manufacturable (thanks, in part, to miniaturized components)
  3. Fuel-agnostic (a work in progress)
  4. Affordability
The technology
Phase Four is developing what it calls the RF Thruster (RF = radiofrequency), which it is adapting to run on unconventional fuel.

  • Six of Phase Four’s Maxwell Block 1 engines are already on-orbit and four more are going up this year on commercial spacecraft.
  • The startup will integrate its second-gen RF Thruster into Block 2 engines, which should enter production this quarter.
  • To be clear, Phase Four’s V1 Maxwell still runs on traditional propellants. But the north star is plasma thrusters powered by new types of fuel. Onboarding advanced propellants is a major R&D initiative underway at Phase Four.
Phase Four’s opportunity
Returning to the topic of affordability, ”most of our customers are building these large constellations of satellites,” Jarvis said, and “can’t afford a million dollar or even half million dollar system.” The unit economics don’t work, he said.

But 80% of the upmass delivered into LEO today is small satellites, Jarvis said. Most of those birds are still running on technology first developed in the Cold War. The technology performs well and if it ain’t broke, don’t fix it, right?

Not quite. Recent events have conspired to throw legacy propulsion’s cost structure out of whack:

  1. Supply chains are already tight as it is.
  2. A high share of traditional propellants—purified noble gasses such as xenon and krypton—are produced in Russia and Ukraine. Those sources are now offline.
  3. “Another large amount comes from China,” Jarvis said, which won’t sell into the US as much anymore “because they have their own space industry they’re developing.”
Sign of the times
Six months ago, a kilogram of xenon would set you back $5,000. “Fast forward to a couple weeks ago, and we got a quote from a local supplier that was over $30,000,” Jarvis said. Seeing the writing on the wall, prime contractors have bought up most of the noble gas supply. “We actually took a bet in February where we bought as much, frankly, as we could afford,” Jarvis said.

What’s next? Phase Four is targeting Q4 for the Hawthorne ribbon-cutting and plans to double headcount by year’s end.

The startup is also currently raising a Series B, and while it may be rough out there in the capital markets, Jarvis isn’t dissuaded. “For companies with working technology, existing customers and demonstrated product demand, there are still solid opportunities to raise in the current market,” he said.
 
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Spaceweather.com (May 21, 2022)
SETTING SUNSPOTS:
Solar Cycle 25 is changing the way days end. The setting sun is now spotted. Valerie Liard took this picture yesterday evening from Epernay, France:
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"Sunspot AR3014 was visible on the solar disk," says Liard. "A plane flew by just as I was taking the picture; the sunspot was much larger."

Indeed, AR3014 is one of the largest sunspots in years. Stretching more than 125,000 km from end to end, its length is almost 1/3rd of the distance from Earth to the Moon. AR3014 is so big it is technically a "naked eye" sunspot. In other words, you can see it without magnification. If you have a pair of eclipse glasses, put them on and take a look.

Warning: Never stare at the unfiltered sun. Liard's picture was taken when the sun was dimmed by low-hanging clouds and haze. Even then, magnified sunlight can damage your eyes. Always use safe solar filters.
 
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There's a mystery in our universe's expansion rate and the Hubble Space Telescope is on the case
By Elizabeth Howell published 1 day ago
The Hubble telescope just made its best measurement yet of the universe's current expansion rate, but it still doesn't match the early universe.
https://www.space.com/universe-expansion-rate-hubble-telescope-measurements
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This image collection based on Hubble Space Telescope data features galaxies hosting both Cepheid variables and supernovas. Such objects help to chart the universe's expansion. (Image credit: NASA, ESA, Adam G. Riess (STScI, JHU))
Scientists have a new, more accurate, measurement of the expansion of the universe thanks to decades worth of data from the Hubble Space Telescope.

The new analysis of data from the 32-year-old Hubble Space Telescope continues the observatory's longstanding quest to better understand how quickly the universe expands, and how much that expansion is accelerating.

The number astronomers use to measure this expansion is called the Hubble Constant (not after the telescope but after astronomer Edwin Hubble who first measured it in 1929). The Hubble Constant is a tough one to pin down given that different observatories looking at different zones of the universe have delivered different answers. But a new study expresses confidence that Hubble's most recent effort is precise for the expansion it sees, although there is still a difference from other observatories.

The new study confirms previous expansion rate estimates based on Hubble observations, showing an expansion of roughly 45 miles (73 kilometers) per megaparsec. (A megaparsec is a measurement of distance equal to one million parsecs, or 3.26 million light-years.)

"Given the large Hubble sample size, there is only a one-in-a-million chance astronomers are wrong due to an unlucky draw ... a common threshold for taking a problem seriously in physics," NASA said in a statement on Thursday (May 19), paraphrasing Nobel Laureate and study lead author Adam Riess.

Riess has affiliations at the Space Telescope Science Institute (STScI) that manages Hubble, as well as the Johns Hopkins University in Baltimore, Maryland.

Riess and collaborators received the Nobel in 2011 after Hubble and other observatories confirmed that the universe was accelerating in its expansion. Riess calls this latest Hubble effort a "magnum opus" given that it draws upon practically the telescope's entire history, 32 years of space work, to deliver an answer.

Hubble's data nailed down its observed expansion rate under a program called SHOES (Supernova, H0, for the Equation of State of Dark Energy.) The dataset doubles a previous sample of measurements and also includes more than 1,000 Hubble orbits, NASA stated. The new measurement is also eight times more precise than expectations for Hubble's capabilities.

Efforts to measure how fast the universe is expanding usually focus on two distance markers. One of them are the Cepheid stars, variable stars that brighten and dim at a constant rate; their utility has been known since 1912, when astronomer Henrietta Swan Leavitt marked their importance in imagery she was reviewing.

Cepheids are good for charting distances that are inside the Milky Way (our galaxy) and in nearby galaxies. For further distances, astronomers rely upon Type 1a supernovas. These supernovas have a consistent luminosity (inherent brightness), allowing for precise estimates of their distance based on how bright they appear in telescopes.

In the new study, NASA stated, "the team measured 42 of the supernova milepost markers with Hubble. Because they are seen exploding at a rate of about one per year, Hubble has, for all practical purposes, logged as many supernovae as possible for measuring the universe's expansion." (Again, Hubble has been in space for about 32 years, having launched on April 24, 1990; a mirror flaw that hindered early work was addressed by astronauts in December 1993.)

But the expansion rate still does not have full agreement across different efforts. The new study says Hubble's measurements are roughly 45 miles (73 kilometers) per megaparsec. But when taking into account observations of the deep universe, the rate slows down to about 42 miles (67.5 kilometers) per megaparsec.

Deep universe observations rely principally upon measurements by the European Space Agency's Planck mission, which observed the "echo" of the Big Bang that formed our universe. The echo is known as the cosmic microwave background. NASA said astronomers are "at a loss" to figure out why there are two different values, but suggested we may have to rethink basic physics.

Riess said it is best to see the expansion rate not for its exact value at its time, but its implications. "I don't care what the expansion value is specifically, but I like to use it to learn about the universe," Riess said in the NASA statement.

More measurements are expected to come in the forthcoming 20 years from the James Webb Space Telescope, which is completing commissioning work in deep space ahead of looking at some of the first galaxies. Webb, NASA said, will look at Cepheids and Type 1a supernovas "at greater distances or sharper resolution than what Hubble can see." That may in turn refine Hubble's observed rate.

A paper based on the research will be published in the Astronomical Journal. A preprint version is available on arXiv.org.
 
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Spaceweather.com May 24, 2021
METEOR OUTBURST POSSIBLE NEXT WEEK: In late 1995, Comet 73P/Schwassmann-Wachmann 3 exploded. Next week, some of the debris might hit Earth.
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Above: NASA images of Comet 73P still crumbling years after its initial breakup.

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Above: Altitude contours for the shower's radiant. Baja California is favored with zenith observing geometry. Image credit: Jérémie Vaubaillon

Multiple forecasters agree that a meteor shower could erupt on May 31, 2022, when Earth runs into one or more debris streams from Comet 73P. The display could be as intense as a meteor storm (1000 or more meteors per hour) or as weak as nothing at all. No one knows how much debris is inside the approaching streams, so meteor rates are hard to estimate.

Whatever happens, people in North America are in a good position to see it. Almost the entire continent will be in Moon-free darkness when the shower peaks. Maximum activity is expected around 1:00 am Eastern Daylight Time (05:00 UT) on Tuesday morning, May 31st. The shower's radiant (the point from which all meteors stream) will be almost straight above Baja California.


Above: Altitude contours for the shower's radiant. Baja California is favored with zenith observing geometry. Image credit: Jérémie Vaubaillon [more]

This isn't the first time Earth has sampled debris from Comet 73P. In 1930, at least a handful of meteors were observed shortly after the comet's discovery by German astronomers. The meteors emerged from a radiant near 4th magnitude star tau Herculis, so the shower has since been called "the tau Herculid meteor shower." NASA cameras also detected minor tau Herculid activity in 2011 and 2017.

Based on past performance, the tau Herculids seem unlikely to produce a good show. For nearly a century the shower has been a dud. The X-factor this year is fresh material from the comet's catastrophic breakup. If the new meteoroids reach Earth--and that is a big IF--shooting stars will fly from a point near the bright star Arcturus in the constellation Bootes. Here is a sky map to help you find it.

To learn more about the tau Herculid meteor shower, we recommend this comprehensive paper by Joe Rao, a lecturer at the Hayden Planetarium in New York. Also, a new analysis by Jérémie Vaubaillon of the Institute for Celestial Mechanics and Computation of Ephemerides in Paris raises the possibility of two additional outbursts on May 31st resulting from debris shed by Comet 73P in the years 1892 and 1897.

It all adds up to a date with the night sky at the end of the month. Don't miss it!
 
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