SpaceX has just made history by catching a returning Superheavy booster in mid air. Not only is this a milestone for SpaceX and a milestone for spaceflight in general, it was achieved on the first attempt.
The now well-known US space company, SpaceX, has made history multiple times, and now they’ve done it again. On 13th October 2024 they launched their Super Heavy booster carrying a Starship on top, this from their private factory/launch site complex at Boca Chica on the coast of Texas right next to the US border with Mexico.
What was new for this 5th test flight, and quite astonishing, was the fact that the booster rocket returned from the edge of space to Boca Chica, and was caught by the launch tower that it had left less than nine minutes earlier. That was time enough to deliver Starship to space, and return. Nobody has ever caught a returning rocket stage before – it’s a world first. And the Super Heavy booster is no lightweight, even empty of fuel it weighs 500 tonnes and it’s the world’s largest launch vehicle. Not only that, once in space Starship accelerated to orbital velocity, flew right across the Caribbean and the Atlantic, across Africa and much of the Pacific, and made a landing with pin-point accuracy in the Indian Ocean.
Why is this useful?
Quite simply, the long term goal is to launch, refuel, and launch again – several times a day. So one reusable booster and an adequate fuel supply could put several Starships into Earth orbit in a single day. Starships are intended to be developed for several different purposes, one of these will be a tanker that can refuel another Starship in orbit and return to Earth empty for another load. Several refuelling trips (at least eight) would result in a fully fuelled Starship in orbit, sufficient to deliver 100 tonnes of cargo or perhaps 50 crew members almost anywhere in the Solar System. (SpaceX claims 150 tons or 100 crew, but we’ll see. I remain conservative in my expectations.)
NASA has already chosen Starship as its human landing system for the return to the Moon. A fully fueled Starship-based Moon lander could collect several astronauts from NASA’s projected lunar space station, carry them and a lot of supplies to a Moon landing, and still have sufficient fuel for the return trip to the NASA Station and on to Earth for recovery and reflight. Today’s booster return was a necessary requirement for this plan to proceed.
What’s next?
Big improvements and lots of practice, that’s what comes next. SpaceX will want to repeat the launch and landing of a Super Heavy at least monthly and then weekly going forward. They will need to make improvements to the boosters until they can be safely and frequently re-used. They will also want to fly Starship into full orbits of Earth and practice re-entry and catching for those too. The heat shield for Starship needs improvement but the next version is already in production and incorporates some of the required changes. Then they will need to fly Starship with cargo (almost certainly the new, larger version of the Starlink satellites) until its safety record is good and it has proven reusability.
After that, they need to design, build and test the tanker and the lunar landing versions of Starship. Next comes flying astronauts to the Moon, and probably in parallel with that, landing cargo on Mars in preparation for sending crew there. This is all a huge ask, but SpaceX keeps surprising us. Can they do it? I don’t know, but if anyone can, SpaceX can.
See also:
- About the company, SpaceX – Wikipedia
- Discussion with Marcus House and Scott Manley – Fraser Cain
- Biggest mach diamonds ever! – JHM
- Marcus House – YouTube
- Past and planned test flights – Wikipedia
- Significant – Starship – JHM
- SpaceX Starship – Wikipedia
- SpaceX Starship launch (first attempt) – JHM
- Starship tries again (flight 4) – JHM
- Super Heavy – Wikipedia
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