NASA astronauts Bob Behnken and Doug Hurley are on a roughly 19-hour journey to the International Space Station. It’s a mission nearly a decade in the...

Watch live as two NASA astronauts​ lift off aboard a SpaceX Crew Dragon, ushering in a new era for the U.S. space...

Astronauts Doug Hurley and Bob Behnken join NASA’s exclusive inner circle by catching a ride on a SpaceX rocket and capsule. It’s only the fifth time that NASA has put people aboard a brand new spacecraft line for liftoff. And it’s the first time the spacecraft belongs to a for-profit company in charge of the launch. The retired Marine colonel and former fighter pilot flew on NASA’s...

A fossilized millipede-like creature discovered in Scotland may represent the oldest-known land animal, a humble pioneer of terrestrial living 425 million years ago that helped pave the way for the throngs that would eventually inhabit Earth's dry parts. Researchers said the fossil of the Silurian Period creature, called Kampecaris obanensis and unearthed on the island of Kerrera in the Scottish...

Elon Musk's "biggest concern" is reentry — the final stage of SpaceX's biggest mission for NASA, when its astronauts must hurtle back to...

The countdown clock is running for a second time, in hopes of achieving a first: SpaceX is aiming to become the first company to send NASA astronauts to the International Space Station on a commercial spaceship. If liftoff from NASA's Kennedy Space Center in Florida occurs today at 3:22 p.m. ET (12:22 p.m. PT), it'll be a feat that America hasn't been able to perform since NASA retired...

This may mark the beginning of a new solar...

Yellowstone is one of the most seismically active places in the entire country, experiencing around 700 to 3,000 earthquakes every...

SpaceX is once again preparing to make history – the private spaceflight company is set to launch its Crew Dragon Demo-2 mission in collaboration with NASA today. The launch will take off from Cape Canaveral in Florida, and once again weather is a concern for today's launch window. SpaceX and NASA have an instantaneous launch window today, which means they only have the one shot to take off...