This colorful image of the Helix nebula may mirror what someday could become of our sun and our home planet. Released on ...

Astronomers have revealed new evidence that there are not just one but four tiny planets circling around Barnard's Star, the second-nearest star system to ... Barnard's Star is our cosmic neighbor ...

Meyer (University of Michigan) There's a class of objects in the cosmos that are neither stars, nor are they quite planets.

Astronomers have discovered two new exoplanets that are similar to other worlds found in the Milky Way, but unlike any in our ...

The Kuiper Belt is a region in space beyond the orbit of Neptune that's home to Pluto and most of the known dwarf planets, as well as some comets that are thought to be relics of the solar system ...

Starting closest to the sun, our home star's nearest ... there could be "more than 100" extra dwarf planets waiting to be found in the outer solar system, all of which could have moons.

A new classification scheme may help us better understand planet formation — including the history of our own family of worlds.

Planets' temperatures are largely influenced by their structural characteristics and proximity to the Sun, however, Venus ...

The findings provide strong evidence that four giant exoplanets 130 light-years from Earth formed much like Jupiter and ...

This is particularly puzzling, as a vast majority of meteorites can be traced to some well-known parent body—whether that be the Moon, Mars, or other asteroids. In fact, according to New Scientist, ...