Before they head to the moon in 2026, the four Artemis 2 astronauts have to practice observing Earth's nearest neighbor.

The next astronauts headed to the moon are preparing for all contingencies as their mission approaches, and they recently completed a nighttime rehearsal of launch procedures. NASA's Artemis 2 mission ...

All of that results in a better overall SLS and a ship ready for human flight when it launches next year.

If there's one thing astronauts know, it's "practice, practice, practice." The next astronauts headed to the moon are preparing for all contingencies as their mission approaches, and they recently ...