If all had gone according to plan, four astronauts might have been returning just this week from a history-making, 10-day slingshot trip around the moon. Instead, NASA’s engineers have been grappling ...

Humans have achieved groundbreaking feats in space exploration, reaching distant stretches of space with missions like Voyager 1. However, none of this would have been possible without rockets.

CAPE CANAVERAL — If all had gone according to plan, four astronauts might have been returning just this week from a history-making, 10-day slingshot trip around the moon. Instead, NASA's engineers ...