After an unprecedented streak of 267 successful landings, SpaceX's Falcon 9 rocket booster dramatically exploded on a drone ship after completing its 23rd mission. Discover what went wrong and what it ...

Dozens of startups working on data centers, mining and pharmaceuticals are hanging on Elon Musk's long-stalled megarocket.

The South Korean startup Innospace failed during its first orbital launch attempt, which sent five satellites aloft on Dec.

For more than 60 years, nearly every large rocket used some combination of the same liquid and solid propellants. Refined ...