In Today’s Deep Space Extra… NASA plans International Space Station (ISS) robot arm operations to overcome an external solar power issue aboard the six person orbiting science lab that has prompted a delay this week in the launch of a NASA contracted SpaceX cargo mission. China and Pakistan sign a space cooperation agreement. Some believe it’s time to restore Pluto’s planet status.
Human Space Exploration
Space Station power problem delays CRS-17 Dragon launch
Spaceflightinsider.com (4/30): SpaceX’s 17th NASA contracted cargo mission to the International Space Station (ISS) has been delayed from an early Wednesday liftoff from Cape Canaveral Air Force Station, Florida, until no sooner than early Friday to provide time for NASA ISS program personnel and astronauts aboard the six person orbiting lab time to deal with a failed external Main Bus Switching Unit. There are four of the units, each distributing power across two solar power networks. Repairs using the Station’s Canadian robot arms are planned. The difficulty affects power to the robot arm, which is also used by Station astronauts to grapple the SpaceX Dragon cargo capsule once it rendezvous with the Station. Under NASA flight rules for the grapple, the arm must have a primary ...