Humans haven’t been back to the moon since the Apollo moons program ended over five decade ago. The reasons why go beyond science, according to experts.

Three books push back on a rising tide of optimism about space settlements. Elon Musk and Jeff Bezos are bitter rivals in the commercial space race, but they agree on one thing: Settling space is an ...

MERRITT ISLAND, Fla. – About 250 miles above earth, the International Space Station remains in constant orbit around the planet. “It's an amazing facility,” said retired NASA astronaut Rex Walheim.

In October, at a tech conference in Italy, Amazon and Blue Origin founder Jeff Bezos predicted that millions of people will be living in space “in the next couple of decades” and “mostly,” he’d said, ...

While scientists are still working to understand the effects an extended trip to space can have on the human body, research in recent years has suggested that astronauts may experience some pretty ...

The first time you experience weightlessness in space, Tom Marshburn told me, all the noise and pressure of launch suddenly disappear. One moment, the roar of engines shakes every bone in your body; ...