Breaking News NASA Artemis II Astronauts Brace for Fiery Reentry After Historic Moon Orbit Helen Carrie April 11, 2026 0 Reentry is the tensest moment, with Orion slamming into the atmosphere to generate plasma hotter than the Sun’s surface.
Breaking News NASA NASA Troubleshooting Artemis II Rocket Upper Stage Helium Issue Helen Carrie February 24, 2026 0 The upper stage uses helium to maintain the proper environmental conditions for the stage’s engine and to pressurize liquid hydrogen and liquid oxygen propellant tanks.