NASA began another practice launch countdown Tuesday for its first moonshot in decades with astronauts after making repairs to fix dangerous fuel leaks that already have bumped the flight into March.

The mission, which will send four astronauts on a 10-day trip around the moon, has been delayed until at least March. This test, known as a wet dress rehearsal, involves fueling the Space Launch ...

One hundred years ago yesterday, Robert H. Goddard ignited a small rocket fueled by gasoline and liquid oxygen on a frozen farm in Auburn, Massachusetts. That flight lasted roughly 2.5 seconds. Today, ...