SLS
NASA budget proposal targets SLS
The White House’s fiscal year 2020 budget request for NASA proposes to delay work on an upgraded version of the Space Launch System and would transfer some of that vehicle’s payloads to other rockets.
NASA reassessing date for first SLS launch
The director of NASA’s Marshall Space Flight Center said March 5 that the agency is “reassessing” the 2020 launch date for the first flight of its Space Launch System, suggesting that the mission may face further delays.
Europa or Enceladus? If NASA switches from SLS to Falcon Heavy, it won’t have to choose
Switching from SLS to the Falcon Heavy may cause some trade-offs in designing both the Europa Clipper and the Europa Lander to fit the smaller rocket. However, the cost savings could be plowed into an Enceladus orbiter.
NASA inspector general sharply criticizes SLS core stage development
A report by NASA’s inspector general Oct. 10 criticized both NASA and Boeing for delays and cost overruns in the development of a key component of the Space Launch System, and warned of more delays and overruns to come.
Boeing plans changes to SLS upper stages
With NASA’s decision to continue using an interim upper stage for additional flights of the Space Launch System, Boeing is working on changes to both that stage and a more powerful upper stage.
NASA says RS-25 engine test a success despite ending early
NASA says an Aug. 14 test of an engine for the Space Launch System was a success despite an unspecified “facility issue” that caused the test to end early.
NASA seeking proposals for second mobile launch platform
NASA has issued a call for proposals to construct a second mobile launch platform that will be used by an upgraded version of the Space Launch System rocket starting in the early 2020s.
Contamination found in SLS engine tubing
NASA is dealing with a contamination problem with tubing in part of the core stage of the first Space Launch System vehicle, an issue that could contribute to further delays for its launch.
NASA may extend space station missions to address potential commercial crew delays
NASA is in discussions with its Russian counterparts about extending some upcoming space station missions as a way to buy more time for development of commercial crew vehicles.
House members question balance of NASA programs in 2019 budget proposal
Members of the House space subcommittee raised concerns about elements of NASA's fiscal year 2019 budget proposal during a March 7 hearing, from the cancellation of a space telescope to restructuring of the agency's technology programs.
Safety panel warns of “bottleneck” of reviews for exploration and commercial crew vehicles
Members of a NASA safety panel said they see good progress on the development of both exploration systems and commercial crew vehicles, but warn future progress could be hindered by a "bottleneck" of reviews they face.
NASA no longer seeking to develop second mobile launcher for SLS
NASA is not planning to develop a second mobile launch platform that could shorten the gap between the first two Space Launch System missions as it makes few changes in general to its exploration programs despite a renewed focus on the moon.
NASA budget proposal continues debate on when and how to launch Europa Clipper
NASA's fiscal year 2019 proposal will likely set up another showdown between NASA and Congress regarding the Europa Clipper mission, debating not only when to launch the spacecraft but also how.
Safety panel raises concerns about Falcon 9 pressure vessel for commercial crew missions
An independent safety panel recommended NASA not certify SpaceX’s commercial crew system until the agency better understands the behavior of pressure vessels linked to a Falcon 9 failure in 2016.
