The Space Launch System rocket's RS-25 engine was fired up for the “final round of certification testing ahead of production ...

Plasma propulsion transforms an inert propellant – often hydrogen – into plasma, a superheated mix of ions and electrons. Magnetic fields then funnel and accelerate the ...

Elon Musk believes the best way to solve the difficulties of building AI data centers on earth is to move them into outer space. His merger this week of his rocket company SpaceX with his artificial ...

Working on a car can be a fun, relaxing activity, but there are some vehicles that really strain that philosophy. Here are some of the worst.

On Monday, after rolling the SLS rocket to be used for the Artemis II mission to the pad in January, NASA attempted its first ...

CAPE CANAVERAL, Florida — NASA encountered frustrating fuel leaks during a make-or-break test of its new moon rocket on ...

NASA says it can't try until March at the earliest to send a crewed spacecraft on a flight around the moon and back, due to ...

The agency did not complete a practice countdown for a mission that would be the first to send people around the moon in more than 50 years.

NASA said Tuesday it will now target a March launch of its new moon rocket after running into exasperating fuel leaks during ...

NASA ran into exasperating fuel leaks during a make-or-break test of its new moon rocket Monday, calling into question how ...

The details: The deal valued SpaceX at about $1 trillion, up from the roughly $800 billion cited in December; xAI was valued ...