Almost 10 years ago, a NASA spacecraft was able to take several photos of Pluto, known for decades as a planet before it was ...

Scientists have discovered that at least seven Earth-sized worlds circle the star TRAPPIST-1, a ultracool dwarf ... the planets surrounding it would all be within the orbit of Mercury, according ...

Combining with one other previously confirmed planet, one of our closest stellar neighbors now has a family of four.

Astronomers have discovered four planets that are just a fraction of the mass of Earth orbiting Barnard’s Star, which is 6 ...

Hycean worlds, which are a possible kind of exoplanet with deep oceans surrounded by a thick envelope of hydrogen, could ...

Last year, astronomers announced that a planet orbits Barnard’s star. Now, researchers have confirmed the existence of three more.

Since then, astronomers have discovered that at least 70% of all stars in the Milky Way are this type of star, which is why researchers want to know about the types of planets that orbit them ...

The relative quantities of volatile gases like methane and ethane can reveal key details about distant Kuiper Belt objects.

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 ...

Barnard’s Star, discovered by American astronomer E.E. Barnard in 1916, is a low-mass red dwarf ... each of the four planets are inside the distance of Mercury’s orbit,” Basant said.