What makes 3I/ATLAS especially intriguing is that the comet might be three billion years older than our entire Solar System.

The interstellar object 3I/ATLAS has been something of a mystery ever since it graced our solar system. From all outward ...

Scientists have found that a sample of the moon brought to Earth in 1972 by Apollo 17 astronauts contains a ratio of sulfur ...

As scientists get closer to putting humans on Mars, the need to understand why clocks tick faster on the red planet is more ...

Elon Musk, the founder and CEO of SpaceX, has called "rapidly reusable, reliable rockets" the key to humans becoming a multiplanetary society. And when it comes to his company's Falcon 9, SpaceX has ...

Another, even rarer view is to see our planet from the surface of another world—something, in fact, that first occurred only in 2004, when NASA’s Spirit rover on Mars snapped an image of Earth in that ...

Vice President Mike Pence on Wednesday announced 18 astronauts chosen for possible participation in planned NASA missions to return to the moon's surface during the final U.S. space policy meeting ...

Two decades of observations by a pair of orbiting spacecraft have enabled scientists to track the whirlwinds called "dust devils" that regularly pirouette across the surface of Mars, providing a ...

For a quarter of a century, humans have continuously occupied the International Space Station. Here's a look at how far we've ...

Between the orbits of Mars and Jupiter lies a ring-shaped region called the asteroid belt, home to the vast majority of our ...

The ISS feels impossibly far at 250 miles up, but lunar missions go 240,000 miles out - over 1000x the distance. It's a ...