News

ULA launches second Vulcan flight, encounters strap-on booster anomaly

United Launch Alliance fired off a next-generation Vulcan rocket Friday in the second of two “certification” test flights needed before the new launcher can be used to carry high-priority national security payloads for the U.S. Space Force and the National Reconnaissance Office. One of two solid-propellant strap-on boosters provided by Northrop Grumman suffered an anomaly of some sort. ULA CEO Tory Bruno said it will be investigated.

Mission Reports

Polaris Dawn crew gears up for Thursday spacewalk

Billionaire Jared Isaacman and SpaceX crew trainer Sarah Gillis prepared to open the forward hatch of their Polaris Dawn spacecraft early Thursday to take turns floating outside in the first non-government spacewalk in the history of space exploration. Depressurizing the spacecraft will begin around 2:23 a.m. EDT (0623 UTC) and a scaffold-like “Skywalker” assembly extending just above the hatch will be used for stability.