The building blocks of life could have been delivered to Ceres by one or more space rocks from the outer asteroid belt.

The Carnegie Institution for Science and the International Astronomical Union’s Minor Planet Center has announced the discovery of dwarf planet 2015, the world with an extremely distant aphelion ...

A blue atmosphere, smooth areas, and youthful mountain ranges - this dwarf ... planet may still be geologically active, but scientists are uncertain about what form that activity may take. It was ...

Within this nebula, the hot core of the star remains—crushed to high density by gravity—as a white dwarf with temperatures ... At this point the pressure at its center will become so great ...

Pluto is a dwarf planet. As the name suggests, a dwarf planet is smaller than a planet. Its force of gravity is not strong enough to pull in all the many other objects in its orbit around the Sun.