What can star variability—changes in a star's brightness over time—teach astronomers about exoplanet habitability? This is ...

This image from the Mars Global Surveyor Mars Orbiter Camera shows the region Ares Vallis and the Chryse Plains, where both ...

Radiation from space that led to more than 6,000 Airbus aircraft needing emergency computer updates could become a growing ...

Still, science being science, we needed proof—and we got it in 1992, when two astronomers found two planets orbiting a pulsar ...

This month will bring some striking celestial sights, including one of the year’s best meteor showers and a glowing Saturn-moon pairing.

The picture-perfect launch of twin Escapade orbiters bound for Mars presages a fantastical new age in exploring the planets, ...

When a meteor streaks across the sky, it's not just beautiful. It's nature's way of delivering a time capsule to Earth.

Far beyond Neptune, at the far outer rim of our Solar System, astronomers have spotted what looks like a hidden “structure” ...

American space agency NASA readies the Nancy Grace Roman Space Telescope for integration, launch could come as soon as next ...

Scientists combine observations from Mars missions to get the clearest and most accurate track of 3I/Atlas so far.

Currently there is a third “interstellar interloper” now passing through the solar system designated as 3i/ATLAS, for the ...