New research has uncovered compelling evidence that water from a comet is strikingly similar to that found in Earth's oceans, ...

Californians could potentially see nearly back-to-back SpaceX launches now that a Starlink mission scheduled for the weekend has twice been postponed.

Now, the Vulcan's debut flight for the Space Force’s Space Systems Command will be its first major test in operation.Start the day smarter. Get all the news you need in your inbox each morning.