'The Centaur has [been] delivered.' When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A towering propellant tank and its rocket engine now stand on ...

Not surprisingly, Congress is pushing back against the Trump administration’s proposal to cancel the Space Launch System, the behemoth rocket NASA has developed to propel astronauts back to the Moon.

WASHINGTON — The Federal Aviation Administration is moving ahead with efforts to develop rules for the disposal of upper stages as another Centaur upper stage breaks apart in orbit. Slingshot ...