NASA plans to launch four astronauts on a long-awaited trip around the moon as early as April 1, it announced Thursday. Lori Glaze, acting associate administrator of NASA’s Exploration Systems ...

The two-day countdown test at NASA’s Kennedy Space Center in Florida included filling up the tanks of the giant Space Launch System rocket with millions of pounds of liquid hydrogen and liquid oxygen.

An issue with the SLS rocket's helium system forced the agency to roll back the rocket to NASA's Vehicle Assembly Building ...

NASA's Space Launch System rocket is about to depart the launch pad in Florida where it has been vertical for more than a month ahead of Artemis 2.