Year: 2022

ESA selects Ariane-6’s first payloads

9:05 am

The European Space Agency (ESA), ArianeGroup, and Arianespace today announced the payloads that will fly on the first launch of its new Ariane-6 rocket.

The payloads are a variety of cubesats and science experiments, none heavier than 175 pounds with a total payload weight less than one ton. These secondary payloads will either be deployed from or kept attached to a dummy mass that will simulate a large primary satellite payload.

The press release makes no mention of a launch date, as has been the pattern in the last few Ariane-6 press releases. The last release to mention a launch date was in October 2020, which then predicted a launch in the second quarter of ’22. That this date is no longer being mentioned suggests the date has been pushed back, though for how long remains a mystery.

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First image from Webb released

8:52 am

Webb's first released alignment image

It ain’t pretty, nor is it in optical wavelengths, but the first alignment image from the James Webb Space Telescope has been released by NASA.

That image, reduced slightly to post here, is to the right. It shows 18 different near-infrared images of the same star, each image taken by a different segment of Webb’s primary mirror. At the moment the mirrors are not perfectly aligned, so that each segment’s star image shows up at a slightly different place. The goal now will be to adjust those mirror segments so that future images will show only one star, all focused to the same spot.

This alignment process is expected to take about a month.

The image is significant however because it shows that each segment is producing a relatively sharp image, even though the telescope has not yet cooled to its operating temperature. It thus appears that, unlike Hubble, Webb’s mirror segments were ground correctly, and it will be able to take sharp images right off the bat.

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Judge blocks Camden spaceport land purchase pending March 8th vote

8:36 am

Capitalism in space: A state judge has blocked Camden County in Georgia from purchasing any land for its proposed spaceport until after the county’s citizens vote on approving or rejecting the spaceport project on March 8, 2022.

Superior Court Judge Stephen Scarlett’s injunction delivered a new victory for the residents and environmentalists who’ve remained critical of the county’s ambitious plans to launch rockets off Georgia’s coast toward sensitive barrier islands.

This week, a probate court judge ordered a March 8 election after a petition circulated by opponents received enough signatures for a referendum asking if the county should repeal its land-acquisition agreement with Union Carbide Corp. for the former industrial site where an environmental covenant restricts use of the land.

Essentially, the project will live or die depending on how county residents vote.

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Musk: “We need to seize the opportunity and do it as quickly as possible.”

9:54 pm

Raptor engine
Raptor-1 on the left, Raptor-2 on the right

The headline quote above encapsulates the main philosophical point of Elon Musk’s presentation tonight in Boca Chica, Texas. Musk’s presentation was focused mostly at outlining the status of SpaceX’s Starship/Superheavy reusable heavy-lift rocket, but he started his talk stating his philosophical reasons for doing what he is doing.

It is his strong belief that in order to guarantee the survival of all life on Earth, we must colonize as many planets as possible. Musk’s quote above indicated his sense that this effort must be done now. As he had noted,

The window of opportunity [to build human settlements on other worlds] may be open for a long time, and I hope it is, but it may also be open for a short time. And this is the first point in the four and half billion history of Earth that it is possible.

He added, “To be frank, civilization is feeling a little fragile these days,” which makes achieving his goal quickly even more urgent.

After making this point, Musk then proceeded to outline what they’ve accomplished so far in building Starship/Superheavy, and what they hope to do in the coming years. Much of what Musk said was largely known, such as the size and power of Starship and its design. He did underline these important details:
» Read more

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Watching Elon Musk’s update on Starship tonight

3:53 pm

Starship mounted by tower on Superheavy

Tonight at 8 pm (central) Elon Musk is going to give a presentation updating the world on the status of SpaceX’s Starship project, with the fully stacked Starship/Superheavy as his backdrop. The photo to the right is a screen capture showing that stacking.

I have embedded the live stream below. Or you can watch it on SpaceX’s website or on its youtube channel.

The biggest question is the regulatory situation for Boca Chica. Will Musk report progress in getting operations approved there by the federal government, or will he outline how the federal government is acting as a barrier to progress? Or will he sidestep the issue (for diplomatic reasons) and focus his talk entirely on technical issues?

We can only wait and see.

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Today’s blacklisted Americans: Private school makes enemies list of parents

3:31 pm

Lovett ememies list
Click for original.

Blacklists are back and the Democrats (and their supporters) have got ’em: Two officials at the Lovett School, an expensive private K-12 school in the Atlanta area, have assembled an enemies list of “insubordinate” parents.

The picture to the right is a screen capture of an email sent to one of these officials, Jennifer Boutte, director of community relations, showing the list of parent enemies (blurred out to protect the privacy of these individuals). In it one official, Cholle [sp?] Wabrok, thanked Boutte for apparently assembling the list, adding

It is long overdue. I am disgusted by some of these parents, need to prioritize our efforts as some have too much influence. Our watch list — to keep hard-copy only?

» Read more

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Astra launch fails when upper stage starts tumbling after stage separation

2:02 pm

Capitalism in space: Astra’s first attempt to launch from Cape Canaveral and put commercial cubesats in orbit failed today when the upper stage started to tumble immediately after the first stage had separated.

Embedded below is video showing that tumbling. The full replay of the launch live stream can be viewed here.

The silver lining of this failure is that the first stage and all launch operations appeared to function perfectly, right up until after stage separation. Nonetheless, it is a failure, and the company will need to try again and succeed if it wants to survive in the aggressive new launch market.
» Read more

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NASA/NSF express collision concerns for SpaceX’s Starlink constellation

10:00 am

Capitalism in space: In a February 8th letter to the FCC, the National Science Foundation (NSF) and NASA expressed their concerns about the collision possibilities of SpaceX’s full 30,000 satellite Starlink constellation with other spacecraft.

The letter raised several issues about the proposed constellation, primarily because it would increase the number of tracked objects in low Earth orbit by more than a factor of five. “An increase of this magnitude into these confined altitude bands inherently brings additional risk of debris-generating collision events based on the number of objects alone,” the agency stated. “NASA anticipates current and planned science missions, as well as human space flight operations will see an increase in conjunctions.”

The letter did not oppose the constellation, but simply outlined issues that the agencies thought SpaceX needed to address before the constellation’s full deployment. It also noted that these concerns apply to other planned large satellite constellations.

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SpaceX stacks Starship on Superheavy on orbital launchpad

9:37 am

Starship mounted by tower on Superheavy

Capitalism in space: SpaceX for the first time used the giant arms on the launch tower at its Boca Chica orbital launchpad to stack Starship on top of Superheavy, with the fully stacked giant rocket to act as a backdrop to Elon Musk’s update on the project scheduled for airing tonight at 8 pm (Central).

You can see a time lapse of the several hour process here.

The use of a launch tower to stack a rocket is apparently a first, and provides solid evidence that SpaceX’s plan to catch Superheavy with that tower and put it on the ground has a chance of success.

SpaceX has not yet announced how Musk’s presentation will be aired, but when this information is available I will embed it on Behind the Black.

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Earthlike exoplanet in habitable zone detected orbiting nearest star

9:21 am

The uncertainty of science: Astronomers think they have detected an Earthlike exoplanet, in habitable zone, orbiting Proxima Centauri, the nearest star to our solar system.

Astronomer João Faria and his collaborators detected Proxima Centauri d by measuring tiny shifts in the spectrum of the star’s light as the planet’s gravity pulled it during orbit. The team used a state-of-the art spectrograph called ESPRESSO at the Very Large Telescope, a system of four 8.2-metre telescopes at the European Southern Observatory in Cerro Paranal, Chile. The results were published on 10 February in Astronomy & Astrophysics.

This ‘wobble’ technique looks for changes in the star’s motion along the line of sight from Earth, and ESPRESSO can detect variations of just 10 centimeters per second. The total effect of the planet’s orbit, which lasts only five days, is about 40 cm/s, says Faria. “I knew that ESPRESSO could do this, but it was still surprised to see it showing up,” says Faria, who is at the Institute of Astrophysics and Space Sciences in Porto, Portugal.

Though the scientists are very confident about their results, the detection is at present only a candidate planet, as its existence has not been confirmed by an second independent method. Also, the method of detection cannot pin down the exoplanet’s mass very precisely, though it suggests the exoplanet has rocky planet mass, not too different than Earth’s.

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