Astronomers have identified a rare sednoid called Ammonite, an icy object beyond Neptune that offers new insight into the ...

In September, NASA announced the discovery of a possible sign of life, known as a potential biosignature, on Mars. The Perseverance rover, which has been exploring a dried-up lakebed for years, found ...

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune ...

With major eclipses, brilliant supermoons, and lineups of five or more planets, 2026 offers something awe-inspiring in every season. Here’s what to watch for. Solar prominences and their associated ...

Astronomers have detected a rogue planet with a mass equivalent to that of Saturn, and by taking observations from both the ground and space, they have also been able to measure its size and distance ...

Nearly 10,000 light years away, a planet the size of Saturn is floating all on its own through empty space. In a stroke of luck, researchers were able to spot this strange, dark world using both ...

Astronomers tracking a nearby star system thought they had spotted an exoplanet reflecting light from its star. Then it vanished. Even stranger, another bright object appeared nearby. After studying ...

The upcoming year will offer a blood-red moon, spectacular meteor showers and the first glimpse of the sun’s corona since April 2024 Look up throughout the year to catch a wide array of astronomical ...

A new computational model suggests that Uranus' and Neptune's cores may be less icy than their "ice giant" nickname suggests. When you purchase through links on our site, we may earn an affiliate ...

New discoveries and fresh looks at familiar worlds show how far exoplanet science has come — and how much remains unknown. When you purchase through links on our site, we may earn an affiliate ...