NASA has discovered a new world, named Gliese 12 b. It is roughly the size of Earth, lies in the habitable zone, and orbits every 12.8 days.

This colorful image of the Helix nebula may mirror what someday could become of our sun and our home planet. Released on ...

Everyone's favorite dwarf planet, Pluto, was discovered just 95 years ago. Here's the story of how the once-ninth planet was ...

For the better part of a century, we believed there were nine planets in our solar system, with Pluto being the farthest from the sun. Since the discovery of more Pluto-sized dwarf planets, that ...

The solar system was packed with 50 to 100 protoplanets billions of years ago. Not all of them lived to tell the tale of the ...

This is particularly puzzling, as a vast majority of meteorites can be traced to some well-known parent body—whether that be ...

Gonggong is a dwarf planet and a member of the scattered disc beyond Neptune. As of 2019, its distance from the Sun is 88 AU, and it is the sixth-farthest known Solar System object.

Why was Pluto reclassified as a dwarf planet? One might think that it’s purely a matter of size. Mercury, the smallest of the major planets, has a diameter that is twice as large as Pluto’s.

The idea of Ceres having water is not entirely new. The dwarf planet was discovered in 1801, then it was just regarded as an asteroid, and since 2005, it has been officially regarded as a dwarf planet ...

On May 17, 2017, NASA’s Dawn spacecraft captured a stunning image of Ceres’ south polar region, offering a closer look at the mysterious dwarf planet. Dawn, launched on September 27 ...

Gonggong is a dwarf planet and the first major body in our solar system to have a Chinese name. It's also known as 2007 OR10. Ceres is a dwarf planet in the asteroid belt between Mars and Jupiter.

This dwarf galaxy, named Andromeda XXXV and located roughly 3 million light-years away, is forcing astronomers to rethink how galaxies evolve in different cosmic environments and survive different ...