This once-in-a-generation shift is a pivotal power play in a saga that will unfold in the years and decades to come.

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

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 ...

Arrokoth is composed of two separate bodies, 3 and 9 miles across. In the distant past they rotated so slowly about each other that their mutual gravitational attraction caused them to come together ...

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, ...

Pluto, a distant and fascinating dwarf planet, has revealed more of its secrets. Thanks to New Horizons, discover stunning ...

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

For decades, astronomers suspected that Pluto and Charon formed through a process similar to Earth and the Moon. This theory, ...

Stars and galaxies essentially remained unmoving in the images, but anything ... Astronomical Union reclassified Pluto as a dwarf planet. The New Horizons mission carries some of Tombaugh's ...