RL10C – Spaceflight Now

November 26, 2025

Breaking News

[ November 24, 2025 ] NASA, Boeing pivot Starliner-1 mission from 4-person astronaut flight to cargo-only News
[ November 23, 2025 ] SpaceX launches 28 Starlink satellites from Vandenberg on brand new Falcon 9 rocket Falcon 9
[ November 21, 2025 ] Falcon 9 rocket continues Starlink deployments with launch from Cape Canaveral Falcon 9
[ November 20, 2025 ] Falcon 9 Starlink mission marks 100th launch of the year from Florida’s Space Coast Falcon 9
[ November 18, 2025 ] SpaceX resumes early evening launches after FAA restrictions lifted News

Aerojet Rocketdyne, ULA mark 60th anniversary of RL10 rocket engine

November 28, 2023 Will Robinson-Smith

A rocket engine with a long pedigree marked a big milestone on Monday. It’s 60 years since the hydrogen-fueled RL10 engine debuted onboard a Centaur upper stage launched from Cape Canaveral on Nov. 27, 1963.

Record-setting Atlas launches with new Centaur engine

December 13, 2014 Justin Ray

A United Launch Alliance Atlas 5 rocket put on a display of power, sound and light Friday evening at Vandenberg Air Force Base in launching a clandestine national security payload, then successfully debuted a new upper stage engine as it flew over the horizon.

Atlas 5 to sport new upper stage engine Thursday

December 8, 2014 Justin Ray

The most powerful Atlas rocket to ever fly from the West Coast is poised for launch Thursday to deliver a secret payload into orbit while debuting a new upper stage engine.