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 ...

President Donald Trump wants to phase out NASA's Space Launch System — but the agency seems to have other plans. As Ars ...

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.

Russian space agency Roscosmos has 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 ...

Born into this world as America's first liquid hydrogen rocket engine, it was continuously improved, and it will continue to be so for many years to come. The newest iteration of the powerplant? A ...

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.