Astronomers have discovered two new exoplanets that are similar to other worlds found in the Milky Way, but unlike any in our ...

Each of the planets, labeled b, c, d, and e, has a mass between 20% and 30% of Earth's, making them among the smallest yet ...

Scientists are using an array of instruments to detect other planets, some of which may harbor life—and others that most ...

All planets are made of gas, ice, rock and metal, and models of how planets form usually assume that these materials don't ...

In fact, they’re some of the smallest ones ever found outside our Solar System. What makes it even more interesting? These planets are circling Barnard’s Star, which is just six light-years ...

Only a few years ago, astronomers heralded the discovery of a rocky world circling the sun 's closest space neighbor, Proxima ...

2025 — The James Webb Space Telescope has captured its first direct images of carbon dioxide in a planet outside the solar system in HR 8799, a multiplanet ... Combination of Cosmic Processes ...

Even gargantuan Jupiter, with its whirling superstorms and volatile temperatures, has a soft side. A team of researchers ...

Pluto was once called the ninth planet, but in 2006, scientists changed its status to a dwarf planet. A planet must clear its orbit of other objects, but Pluto shares its space with many small icy ...