The gas giants outside our solar system are not capable of hosting extraterrestrial life, but do offer clues in a lingering ...

NASA astronauts Butch Wilmore and Suni Williams have returned to Earth after nine months in space, and the before-and-after ...

NASA’s James Webb Telescope captured direct images of gas giants in HR 8799, revealing their carbon dioxide-rich atmospheres.

Satellite images taken more than three decades apart show the disappearance of Iceland's Okjökull, the first glacier to be ...

What happened to NASA astronaut Scott Kelly after spending a year in space while twin brother Mark, also an astronaut, ...

An animation of asteroids approaching the Earth, with elements of this image furnished by NASA. Getty Images / mikdam Alongside "2021 FH1," two other smaller asteroids—"2025 FG" and "2025 FF ...

NASA is monitoring a bus-sized asteroid as it makes its closest approach to Earth today, among a group of five space rocks ...

Neptune is an ice giant, composed primarily of hydrogen, helium, and methane, with a hot, dense fluid of icy materials above a small rocky core. Neptune has 14 known moons and at least five main rings ...

Venus will pass between the Earth and sun on Saturday during what's called an inferior conjunction. But don't plan on seeing ...

It's rare for any observatory to directly image a planet beyond our solar system, called an exoplanet, but the powerful James ...