Swiss company tests three-legged hopper for asteroid exploration on zero-G airplane

SpaceHopper in flight
SpaceHopper in flight

A Swiss company, ETH Zurich, has successfully tested the ability of an unmanned three-legged hopper, designed to explore asteroids by hoping in the light gravity, to orient itself using its legs by flying on a zero-G airplane.

The picture to the right is a screen capture from the video embedded below.

All nine leg motors [three per leg] work together to launch the SpaceHopper high off the asteroid’s surface when jumping. As the robot is subsequently in flight, it maintains its upright orientation by selectively extending or withdrawing its legs to shift its center of mass as needed. Upon landing, its legs flex to absorb impact and to keep the bot from falling over.

During zero-G on the airplane flights the hopper successfully jumped, then used its legs to correctly orient itself afterward.

Developing this hopper was initially a student project, and its success has gotten it upgraded, still led by those students.
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Switzerland to sign Artemis Accords

NASA revealed today that Switzerland will become the 37th nation to sign the Artemis Accords in an official ceremony on April 15, 2024.

With this signing, these are the members of the American alliance: Angola, Argentina, Australia, Bahrain, Belgium, Brazil, Bulgaria, Canada, Columbia, Czech Republic, Ecuador, France, Germany, Greece, Iceland, India, Israel, Italy, Japan, Luxembourg, Mexico, the Netherlands, New Zealand, Nigeria, Poland, Romania, Rwanda, Saudi Arabia, Singapore, South Korea, Spain, Switzerland, the United Kingdom, the United Arab Emirates, the Ukraine, the United States and Uruguay.

The NASA press release is revealing about the goals of this alliance, under the Biden administration, both by what it says and what it does not say:

The Artemis Accords reinforce the 1967 Outer Space Treaty as well as the commitment by the United States and partner nations to the Registration Convention, the Rescue and Return Agreement, as well as best practices and norms of responsible behavior that NASA and its partners have supported, including the public release of scientific data.

When established by the Trump administration, the accords were not intended to “reinforce the 1967 Outer Space Treaty.” The accords were intended to create an alliance that would have the political clout to overcome that treaty’s limitations on establishing a private property legal framework in space. Right now the treaty seriously impairs investiment because no company has any assurance it will own any piece of ground it occupies.

The press announcement makes no mention of private enterprise, and implies that the Biden administration is aggressively working to eliminate that goal, and instead use the accords as a way to strengthen government control in space.

Under these circumstances, I wonder why China and Russia haven’t signed on as well.

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Rocket startup Relativity foregoes bidding on present round of military launch contracts

The rocket startup Relativity has decided not to bid on the present round of National Security Space Launch (NSSL) Phase 3 contracts, saying the first launch of its new Terran-R rocket will not occur until 2026, well after those contracts are going to be awarded and flown.

Relativity was initially aiming to compete for the first round of NSSL Phase 3 contracts expected to be awarded later this year. However, the California-based company’s new Terran R rocket won’t fly until 2026 at the earliest, which falls outside the timeframe for this year’s NSSL Phase 3 awards. “We’ve been fairly transparent with our schedule over the last year and have continued to hit our milestones,” Joshua Brost, chief revenue officer at Relativity Space, told SpaceNews. “We’re very comfortable about on-ramping to NSSL in the future, likely next year as we approach that 12 months from initial launch.”

Relativity, after completing one partly successful launch of its smaller Terran-1 rocket in 2023, abandoned further development on that rocket in order to focus on its larger Terran-R. That decision however put it out of the launch market for years. I have always wondered if that decision was partly influenced by the increased launch regulation of the FAA in the past two years, which has caused the launches of new American rockets to almost cease. It might have realized getting Terran-1 launched again would be difficult and waste valuable company time and resources. Better to take a break on the hope that by 2026, the regulatory atmosphere might have improved.

Furthermore, Relativity uses very sophisticated 3D technology to build its rockets, an asset whose value on the market is maybe much greater than its rockets. It could be that Relativity is exploring this avenue at the moment, and we might find it never resumes launches.

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Russia and SpaceX complete launches

Early today both Russia and SpaceX completed rocket launches.

First, Russia after several scrubs for technical reasons successfully completed a test launch of the largest configuration of its Angara rocket, the Angara-A5. It was the first launch of Angara-A5 from its far east spaceport Vostochny, and the first test launch of this rocket confiruration since 2014. Development had stalled for many years due to a major design issue revealed in 2019.

This launch establishes several important benchmarks for Russia’s space program. This rocket is essential for its goal of building a new space station, and the launch from Vostochny gives Russia as stronger backup to Baikonur in Kazakhstan, where long-term access is becoming problematic.

SpaceX then followed, with a launch of a military weather satellite, its Falcon 9 rocket lifting off from Vandenberg in California. The first stage completed its third flight, landing successfully back at Vandenberg.

The leaders in the 2024 launch race:

38 SpaceX
14 China
6 Russia
4 Rocket Lab

American private enterprise still leads the rest of the world combined 44 to 26, while SpaceX by itself still leads the rest of the world, including other American companies, 38 to 32.

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Activists file lawsuit to prevent land swap at Boca Chica

The same collection of activists who have been waging lawfare against SpaceX’s Boca Chica rocket facility have now filed a new lawsuit, this time against the Texas Parks and Wildlife Commission (TPWD) in order to block an approved land swap that gives SpaceX 43 acres of a Boca Chica state park in exchange for receiving 477 acres nearby.

The South Texas Environmental Justice Network, the Carrizo Comecrudo Tribe of Texas, and Save RGV banded together for a lawsuit filed in the District Court of Travis County on April 3. The suit alleges that Texas Parks and Wildlife violated statutory requirements for the proposal, including the requirement to consider alternatives to giving away public park land; the requirement to ensure the minimization of harm to the public park land; and the requirement to consider the best interests of the local community and TPWD.

These jokers represent very few people in south Texas. Worse, the so-called “Carrizo Comecrudo Tribe of Texas” was in Mexico, not Texas, when it existed. The corporation that exists now is a front for filing these lawsuits, taking advantage of the numerous DEI regulations that now exist to favor such minorities.

That the commission approved the swap unanimously, despite heavy pressure from these groups, illustrates the larger support in Texas for what SpaceX is doing. Expect the Texas courts to endorse that support as well. All these suits will do is delay, delay, delay.

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Rocket Lab to refly a recovered first stage

Electron 1st stage floating in the water

Rocket Lab today announced that a first stage used on a launch in January and recovered successfully from the ocean, as shown to the right, has now been moved into its normal production line for preparation for a reflight on an upcoming launch.

The stage was successfully launched and recovered as part of the ‘Four of a Kind’ mission on 31 January 2024 and has already passed more acceptance tests than any other recovered Electron stage, including:

  • Tank pressurization test – a process that filled the carbon composite tank with inert gas and held it in excess of maximum operating pressure for more than 20x longer than the standard Electron flight duration
  • Helium leak check – a stringent process that determines there are no leaks in the tank
  • Carbon fiber structural testing – including ultrasonic assessment and other non-destructive tests to confirm no delamination of the carbon composite tank fibers.

The stage will now undergo final fit out and rigorous qualification and acceptance testing to the same standard as a brand-new Electron tank to determine the recovered stage’s suitability for reflight.

No actual launch date has been set. The company first wants to complete its final testing. If successful and the stage flies again, Rocket Lab will join a very elite club, becoming only the second entity anywhere — after SpaceX capable of reusing a significant part of its rockets. That capability will allow it to drop prices, and better compete.

This success also underlines the lack of creativity from more than a half century of managers and rocket engineers, who repeatedly insisted such reuse was impractical, or impossible. The idea of recovering a stage from the ocean and reusing it was considered crazy, so no one ever tried it. Rocket Lab is about to prove more than a half century of managers and rocket engineers wrong.

Hat tip to BtB’s stringer Jay.

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SpaceX launches more Starlink satellites

The bunny never stops! SpaceX tonight successfully launched 23 Starlink satellites, its Falcon 9 rocket lifting off from Cape Canaveral.

The first stage completed its second flight, landing on a drone ship in the Atlantic.

The leaders in the 2024 launch race:

37 SpaceX
14 China
5 Russia
4 Rocket Lab

American private enterprise now leads the rest of the world combined 43 to 25, while SpaceX by itself leads the rest of the world, including other American companies, 37 to 31.

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ULA completes last Delta-4 Heavy launch

Delta-4 Heavy on its last launch
Delta-4 Heavy on its last launch

ULA today successfully completed the last Delta-4 launch, the Delta-4 Heavy version — the most powerful — lifting off from Cape Canaveral and placing a National Reconnaissance Office surveillance satellite into orbit.

From this point on ULA will rely on its new Vulcan-Centaur and Atlas-5 rockets, though production of the Atlas-5 has ceased. When the remaining Atlas-5s are flown, the Vulcan-Centaur in its many iterations will become the company’s mainstay rocket. All this might change depending on who buys ULA. If Blue Origin buys the company, the mix will be more complex, as that company is developing its own New Glenn rocket.

This was ULA’s second launch in 2024, so there is no change to the leader board in the 2024 launch race:

36 SpaceX
14 China
5 Russia
4 Rocket Lab

American private enterprise now leads the rest of the world combined 42 to 25, while SpaceX by itself leads the rest of the world, including other American companies, 36 to 31.

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Turkey to join China’s lunar base program

Turkey yesterday announced that it is applying to join China’s program to build a lunar base on the Moon, dubbed the International Lunar Research Station (ILRS), becoming the ninth nation in that partnership.

Those nations are Azerbaijan, Belarus, Egypt, Pakistan, Russia, South Africa, Thailand, Turkey, and Venezuela. In addition, another nine academic organizations of one kind or another have signed on.

Interestingly, Turkey’s government apparently decided to partner with China after it flew its own astronaut on Axiom’s AX-3 mission to ISS in January, flying in a SpaceX Dragon capsule launched by SpaceX’s Falcon 9. Previously it had also signed a deal with Sierra Space to participate in both its Dream Chaser and Orbital Reef station.

This new agreement suggests the present instability of international politics has forced it to go to its very powerful neighbors. Or maybe Turkey is signing on with everyone, attempting to burn the candle at both ends.

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New startup to launch a new design for inflatable modules

A new startup, dubbed Max Space, is presently building a test inflatable module it hopes to fly on a SpaceX launch in 2025, testing its new design for inflatable modules that it says is safer and more easily scalable.

Max Space is taking a different technical approach to earlier systems that used a bi-directional “basket weave” fabric structure. “When you start making fibers go in two different directions, 90 degrees apart, the result is you don’t know how much load is going in one direction or the other,” said Maxim de Jong, co-founder and chief technology officer of Max Space, whose past work included development of [Bigelow’s private] Genesis 1 and 2 [orbital modules]. That requires additional material to ensure sufficient margins of safety and also makes it difficult to scale up designs to larger volumes. “Every scale-up is a point design and has to be revalidated,” he said.

Max Space is pursuing a technology called an ultra-high-performance vessel created by de Jong that distributes loads in one direction, a design that he credited to a “totally accidental discovery” while working on other concepts. That reduces the uncertainty in safety margins, which has been demonstrated in tests where modules burst at pressures within 10% of predicted levels. “The predictability is great and the scalability is great,” he said.

According to the company, this design will allow it to quickly build modules with as much as a thousand cubic meters volume, matching ISS in a single module, and able to launch on a single Falcon 9.

The company is not planning its own station. Instead, it simply wishes to be a provider of modules to the other American space stations, four of which are presently being built. It also is offering its modules as potential fuel depots as well as in-orbit storage faciliites.

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What are Israel’s strategic military goals with its latest pull back from Gaza?

Hamas vs Israel
Even the Arabs recognize these facts.
Courtesy of Doug Ross.

Over the weekend numerous news reports announced that Israel had suddenly pulled almost all its troops out of the Gaza strip, apparently abandoning its plan to finish off the last four battalions of Hamas that were hiding out in the southern town of Rafah.

Despite denials by Israel’s military and the Netanyahu government, on the surface it appeared Israel had bowed to pressure from the Biden administration to cancel its invasion of Rafah and instead break off its military offense against Hamas.

I suspect things are much more complicated, and could instead be — as some Israel officials claimed — a tactical maneuver intended to make that military invasion of Rafah more effective while reducing the large number of civilian deaths anticipated because of the more than a million Gazan refugees that have been crammed into that southern city.

The nature of the withdrawal reveals much about its goal:
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SpaceX launches 11 commercial payloads

SpaceX today successfully launched 11 commercial payloads into orbit, as the first of what it calls its Bandwagon series, designed to provide launch ssatellites to medium inclination Earth orbits. The Falcon 9 rocket lifted off from Cape Canaveral, its first stage completing its fourteenth flight, landing back at Cape Canaveral.

The leaders in the 2024 launch race:

36 SpaceX
14 China
5 Russia
4 Rocket Lab

American private enterprise now leads the rest of the world combined 41 to 25, while SpaceX by itself leads the rest of the world, including other American companies, 36 to 30.

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