Researchers have confirmed the mass of a free-floating planet thanks to a lucky convergence of ground- and space-based ...

What would it take for Jupiter to ignite and become our second sun? What if Jupiter gained just a little bit more mass during ...

Here's how the astronomical phenomenon influences our planet—from the length of our seasons to the way Earth moves through ...

How did hot Jupiters end up orbiting so close to their stars, thus earning their moniker? This is what a recent study ...

Meteor showers, eclipses, a planetary parade and 13 full moons will be visible in the night sky in 2026. Here’s when to see them.

A newly discovered exoplanet is rewriting the rules of what planets can be. Orbiting a city-sized neutron star, this ...

Jupiter and Saturn look serene through a backyard telescope, but beneath and around their clouds, both worlds are in dramatic ...

In 2025, astronomers sharpened their view of the planetary system around Proxima Centauri — the sun's closest stellar ...