University of Arizona researchers have unveiled evidence of romance at the farthest reaches of the solar system: a cosmic ...

Behind the planets in the solar system is the Kuiper Belt. An inventory of similar structures around other stars shows how unusual it is.

NASA launched a spacecraft to Pluto! New Horizons is a spacecraft about the size of a grand piano, and it became the first ...

NASA launched the New Horizons probe which would provide never-before-seen images of the dwarf planet, its moons and other objects.

A sociologist of religion explains how atheist churches are helping people find meaning and community – serving many of the ...

Plans called for Williams to float back out next week with Butch Wilmore. Williams and Wilmore launched aboard Boeing's new ...

Recent simulations link the creation of Pluto and its moon Charon to a colossal impact, akin to the Earth-Moon origin, ...

As the world's attention is captured by the ongoing issues at the International Space Station or the Boeing-built Starliner ...

A spacecraft skimmed past Mercury this week, beaming back stunning new images of the surface and showing once again that humankind has a seemingly insatiable longing to understand the universe.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. For decades ...

Using computer models, researchers studying Pluto and its moon, Charon, have discovered an unforeseen kind of cosmic ...

This composite image of Pluto, right, and Charon, its largest moon, showcases photos captured by NASA’s New Horizons spacecraft in July 2015. Credit: NASA / JHUAPL / SwRI Unlike how scientists ...