(CNN) — A German start-up’s orbital rocket spun out and crashed seconds after take-off Sunday, in a rare European test flight that the makers said “met its set goals.” The flight ...

Sounding rockets launched from the Poker Flat Research Range north of Fairbanks, Alaska, lit up the night sky for miles ...

This new propulsion system could rewrite the rules of spaceflight—not to mention completely defy conventional physics.