Elon Musk wants to turn one of the planet’s biggest problems into literal rocket fuel. His pitch is deceptively simple: capture carbon dioxide from the air, combine it with hydrogen, and feed it into ...

It's difficult to imagine a substance that is hundreds of degrees below freezing yet still a liquid. Such is the strange ...

Liquid hydrogen fuel leaks forced NASA to delay the launch of Artemis II—the same scenario it encountered four years ago ...

NASA stopped short of completing a critical fuel test for its Artemis 2 SLS rocket because of hydrogen leaks that sound a lot like the problems they had during Artemis 1.

General Galactic, cofounded by a former SpaceX engineer, plans to test its water-based propellant this fall. If successful, it could help usher in a new era of space travel. That's a big “if.” ...

NASA has postponed its long-awaited crewed moon mission until at least March after dangerous hydrogen fuel leaks halted the final dress rehearsal of its Space Launch System rocket.

NASA is currently targeting Feb. 8 for Artemis 2's liftoff, which will take place from Launch Complex-39B at Kennedy Space ...

If the fueling test goes well, the Artemis II flight around the moon and back could take off as early as Feb. 8.

NASA has run into exasperating fuel leaks in a make-or-break test of the moon rocket that's supposed to send astronauts on a lunar fly-around.