NASA has repaired its Artemis 2 rocket, apparently keeping things on track for a possible April launch of the first crewed moon mission in more than 50 years.
One feature of the Solar System that doesn't require a complex explanation is the cratered surfaces of some of the planets and moons. These surfaces have been pummeled by impacts, and on some bodies, these impacts are defining features. The craters tell the tale of our Solar System's history.

