Add Yahoo as a preferred source to see more of our stories on Google. Some scientists think they discovered a new dwarf planet at the edge of the solar system, so far away that it takes around 25,000 ...

After nine years and a journey of 4.8 billion kilometres, NASA's New Horizons robotic probe awoke from hibernation on Saturday to begin an unprecedented mission to study the icy dwarf planet Pluto and ...

Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory about the possibility of a giant ninth planet. The dwarf planet's existence ...

Ammonite was discovered using the Subaru Telescope in Hawaii, with follow-up confirmation from the Canada-France-Hawaii Telescope. Its orbit and size officially qualify it as a distant dwarf planet.

In 2020, a study confirmed that two planets orbited the nearby red dwarf, GJ 887. Now, astronomers have confirmed the existence of two additional planets orbiting GJ 887 in a new study published in ...

Some scientists think they discovered a new dwarf planet at the edge of the solar system, so far away that it takes around 25,000 years to complete one orbit around the sun. Astrophysicist Dr. Paul ...