ULA Atlas V Rocket Launch Scrubbed Again over Ongoing Oxygen Tank Vent Valve Issue

Issue with Atlas 5 booster liquid oxygen vent valve causes second scrub of ViaSat-3 F2 launch

United Launch Alliance’s Atlas 5 551 rocket sits on the pad at Space Launch Complex 41 (SLC-41) at Cape Canaveral Space Force Station. The launch attempt on Nov. 6, 2025, was scrubbed due to a persistent issue with the booster’s liquid oxygen tank vent valve. Image: Adam Bernstein / Spaceflight Now Update Nov. 6, 9:10 p.m. EST (0210 UTC): ULA scrubbed the launch and will target a new, yet to be announced, launch date. United Launch Alliance halt…

ULA Atlas V rocket launch scrubbed again over ongoing oxygen tank vent valve issue

United Launch Alliance (ULA) has scrubbed the launch of its Atlas V rocket for the second time due to an issue with the Atlas V booster liquid oxygen tank vent valve.

ViaSat-3 F2 Communications Satellite Pre-launch

ViaSat-3 F2 Communications Satellite Pre-launch | Atlas V Rocket | ULAThis is the United Launch Alliance (ULA) Atlas V rocket ahead of launching the 13,000-pound (6-metric-ton) commercial ViaSat-3 Flight 2 satellite to a geosynchronous transfer orbit. It will more than double the bandwidth capacity of ViaSat's existing fleet. ViaSat, Inc. is an American communications company based in Carlsbad, California, with additional operations across the U…