How to get to the Moon … The report estimates that canceling the SLS rocket, its ground systems, Orion, and the Lunar Gateway would save NASA $5.25 billion a year. The authors posit several different architectures for a lunar lander that would be ready sooner and be compatible with existing rockets. This includes a novel plan to use Crew Dragon, with legs, as a lander. It is not clear how much impact the report will have, as Congress seems to want to fly the SLS indefinitely, and the Trump administration seeks to cancel the rocket after two more flights.
NASA is finally interested in propellant depots. This week NASA’s Marshall Space Flight Center posted an update noting its recent work on developing and testing technology to manage cryogenic propellants in space. Teams at the field center in Huntsville, Alabama tested an innovative approach to achieve zero boiloff storage of liquid hydrogen using two stages of active cooling, which could prevent the loss of valuable propellant. “Technologies for reducing propellant loss must be implemented for successful long-duration missions to deep space like the Moon and Mars,” said Kathy Henkel, acting manager of NASA’s Cryogenic Fluid Management Portfolio Project, based at NASA Marshall.
If only this had been done earlier … This is great, obviously, as long-term storage of liquid propellants such as oxygen, hydrogen, and methane are critical to the strategies of SpaceX, Blue Origin, and other companies working to develop reusable and more cost-effective space transportation vehicles. However, it is somewhat ironic to see NASA and Marshall promoting this work after it was suppressed for a decade by US Sen. Richard Shelby, the Alabama Republican. As Ars has previously reported, in order to protect the Space Launch System rocket, Shelby directed NASA to end its work on storage and transfer of cryogenic propellants, going so far as to say he would fire anyone who used the word ‘depot.’ Well, we will say it: Depot.
Next three launches
August 1: Falcon 9 | Crew-11 | Kennedy Space Center, Florida | 15:43 UTC
August 2: Electron | JAKE 4 suborbital flight | Wallops Flight Facility, Virginia | 01:45 UTC
August 4: Falcon 9 | Starlink 10-30 | Cape Canaveral Space Force Station, Florida | 04:11 UTC
