In Today’s Deep Space Extra… NASA’s independent Aerospace Safety Advisory Panel urges policy makers, as well as NASA, not to side step testing for crew safety and technical risk as it moves forward with plans to return to the Moon with human explorers and establish commercial capabilities to transport astronauts to and from the International Space Station. Astronomers think the cigar-shaped asteroid Oumuamua, discovered in 2017, may have come from outside the solar system.
Human Space Exploration
NASA urged to retain key SLS test
Space News (4/25): During a public session Thursday, NASA’s independent Aerospace Safety Advisory Panel urged NASA and policymakers not to side step efforts to reduce technical risk and human safety in efforts to meet a White House directive to advance a return to the surface of the Moon with human explorers from 2028 to 2024. Among the panel’s concerns was a possible option to eliminate an integrated “green run” test firing of the Space Launch System core stage with its four RS-25 rocket engines at the agency’s Stennis Space Center prior to the Exploration Mission-1 and EM-2 uncrewed and crewed test flights of the SLS and Orion capsule. Eliminating the “green run” has been estimated ...