Astronomers say they’ve discovered the most distant body ever observed in our solar system, a potential dwarf planet that’s about 11 billion miles from the sun. Its nickname? “Farout.” ...

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 ...

Data gathered in 1983 shows signs of what a British astronomer believes to be possible evidence of a ninth planet in our solar system ... Pluto’s demotion to dwarf planet.

"The significance of this discovery lies in the fact that it would confirm the existence of internal energy sources that ...

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 ...

Earth-like exoplanets (planets ... solar system. Enceladus, a moon of Saturn, and Europa and Ganymede, moons of Jupiter, are all thought to have saltwater oceans buried under icy shells. Dwarf ...

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 ...

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 ...

Now European Southern Observatory (ESO) thinks one of the objects floating along the main belt might be the smallest dwarf planet in our solar system — an asteroid known as Hygiea. Hygiea isn ...