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

It must have cleared all other celestial bodies, except its own moons, from its orbit.

A team of astronomers has uncovered an Earth-like planet orbiting a star located 4,000 light years away from the solar system ...

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 ...

In the time Pluto was found, classified as a planet and reclassified as a dwarf planet, it has not completed one orbit. One ...

Astronomers have discovered an Earth-like planet orbiting a white dwarf 4,000 light years away, raising questions about Earth ...

The solar system has nine planets, but in 2006 the International Astronomical Union declared Pluto a dwarf planet, making the ...

The celestial object is now redefined as a "dwarf planet," leaving just eight major planets in the solar system. After years of debate over Pluto's planetary status, the International Astronomical ...

Every object in our Solar System is held in place by the Sun ... The largest object is the asteroid belt is the dwarf planet Ceres, which is 950km in diameter (that's about the same the length ...

It is only half as wide as the USA and is smaller than our moon. The solar system contains hundreds of dwarf planets, including Ceres, which can be found in the asteroid belt. Asteroids are made ...

We're showing that, everywhere we look now, there was some sort of magnetic field that was responsible for bringing mass to ...