The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

A six-planet alignment or parade will form an arc in the early night sky, peaking in it's visibility Jan. 17-18. We let you ...

When astronomers found a large world farther out than Pluto, it became one of the final nails in the coffin of our ninth ...

Skywatchers: A six-planet alignment peaks this week as Mars, Jupiter, Uranus, Neptune, Venus, and Saturn come together for ...

Stargazers will be treated to a dazzling six-planet "alignment" this January.

The organic material found in a few areas on the surface of dwarf planet Ceres is probably of exogenic origin. Impacting ...

The dwarf planet is a bizarre, cryovolcanic world. However, the organic deposits discovered on its surface so far are unlikely to originate from its interior. The organic material found in a few areas ...

Charon is the largest moon of the dwarf planet Pluto, but calling it a moon ... (2,377 kilometers), whereas Charon has a mass of 1.6 x 10 21 kg and a diameter of 753 miles (1,212 km).

The Dawn space probe found organic molecules on the dwarf planet around ten years ago. A Max Planck team used AI to investigate where they came from. During measurements with the spectrometer ...

Timing: Dusk after sunset, but before 9 p.m. local time There are eight planets in our solar system and one dwarf planet (Pluto ... see a maximum of magnitude 6.0. The Hubble Space Telescope ...