Artemis rocket launch delayed for 2nd time in a week 01:36. NASA's star-crossed Space Launch System moon rocket was grounded for the second time in five days Saturday, this time by a large ...

NASA moon mission postponed after engine issue 01:15. After months of tests, troubleshooting and repairs, engineers fueled the Space Launch System moon rocket for blastoff Monday on NASA's long ...

The bold question-askers at What If present a radical new plan for space travel using hydrogen balloons instead of rockets.

Russian space agency Roscosmos set the first launch of the Angara-A5M heavy-lift rocket for 2027 after considering the schedule for upgrading the Vostochny cosmodrome, Roscosmos CEO Dmitry Bakanov ...

NASA’s deputy associate administrator for Exploration Systems Development Tom Whitmeyer explained that unlike liquid oxygen, which is “pumped” into the rocket, hydrogen requires pressure to ...

Rockets that currently use liquid hydrogen include Atlas’s Centaur and Boeing’s Delta III and IV, while Blue Origin’s BE-3 and BE-7 engines also rely on hydrogen.

NASA's new Artemis moon rocket is illuminated by xenon lights as she sits on Launch Pad 39-B hours ahead of a planned launch at the Kennedy Space Center Saturday, Sept. 3, 2022, in Cape Canaveral ...

Some rocket launches have experimented with gases such as argon and nitrogen, which are also inert and can sometimes be cheaper. Helium, however, is much more prevalent in the industry.