Junshatang – Making a Yixing purple clay teapot
An evening pause: Watch a real artist at work.
Hat tip Cotour.
An evening pause: Watch a real artist at work.
Hat tip Cotour.
Though Amazon’s CEO Andy Jassy, in his annual letter to shareholders yesterday, touted the Kuiper internet constellation’s profit potential, he also implied that the planned first launch of operational satellites has been delayed.
When Project Kuiper’s first two prototype satellites were launched last October for testing, Amazon said that its first production-grade satellites were on track for launch in the first half of 2024, and that it expected broadband service to be in beta testing with selected customers by the end of the year.
Today, Jassy put a slightly different spin on that schedule. “We’re on track to launch our first production satellites in 2024,” he wrote in his letter. “We’ve still got a long way to go, but are encouraged by our progress.”
Later in a television interview Jassy was more blunt, stating that the first operational satellites will not be ready until “the second half of ’24”, with the service becoming available “in the next year or so.”
The company’s incredibly slow roll-out of this constellation puts it at a significant disadvantage. Both it and Starlink were announced at about the same time, but Starlink already has several thousand satellites in orbit, has been operational for several years, and has almost three million customers signed on. It has gotten all the low-hanging fruit. Amazon will either have to convince those customers to switch — generally a difficult thing to do — or find new customers that have so far been less inclined to buy such satellite services.

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.
» Read more
An evening pause: Performed live 1998.
Hat tip Alton Blevins.
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.
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.
An evening pause: Performed live 1992.
Hat tip Judd Clark.
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.
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.
An evening pause: Performed live 1996.

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.
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.