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 ...

Watch this video to find out more about the Earth, planets in our Solar System and other planets far ... The largest object is the asteroid belt is the dwarf planet Ceres, which is 950km in ...

Astronomers think that a dwarf planet hiding in the middle of our solar system could be a source of frozen water. The dwarf ...

This image of Pluto, one of 77 composite photographs that appeared in Otherworlds: Visions of our Solar System, shows the dwarf planet lit from behind by the Sun, surrounded by a tenuous, hazy blue ...

Learn about the size, temperature, and colour of each planet, and discover why Pluto is no longer considered a planet.

This solar system consists of four inner rocky planets and four outer gas giant planets as well as an asteroid belt, containing thousands of huge rocks, dwarf planets and comets. Our solar system ...

The Carnegie Institution for Science and the International Astronomical Union’s Minor Planet Center has announced the discovery of dwarf planet ... the life of the solar system and that there ...

Opinions expressed by Forbes Contributors are their own. Jamie Carter is an award-winning reporter who covers the night sky. Computer simulations suggest that there is an undiscovered Earth-like ...

The origin of a dwarf planet living in our solar system was a subject of debate for several years among astronomers. They now seem to have settled it. Ceres, a dwarf planet in the asteroid belt ...

Best known for driving demotion of Pluto to dwarf planet, astronomer Mike Brown discusses the next horizons in our solar system, including the hunt for the elusive Planet 9. This article was ...