The commercial satellite imaging company Maxar confirmed that it is suspending the sharing of US government-commissioned imagery with Ukraine, a move that severely constrains Ukrainian drone ...

For example, for the Artemis IV mission, NASA plans to use the SLS Block 1B configuration, which is 366 feet tall compared to the 322-foot Block 1 configuration being used for the Artemis II mission.

CHICAGO — The news has been nonstop this week, and so has our team. See what Block Club reporters captured while covering the city’s neighborhoods.

"Ideally, NASA should be able to buy heavy lift services to send payloads to the Moon—up to about 45 metric tons to 'trans-lunar injection' which is about the same performance as the SLS Block 2 ...