Venus, Earth and the rest of our planets. With a dedicated coloring pages for each planet in our solar system, as well as the ...

On May 21, the International Astronomical Union’s Minor Planet Center announced the ... the most distant region in our solar system, which is home to many comets, and then sent back,” Cheng ...

Credit: Sihao Cheng et al. Scientists have found evidence of a previously-undetected dwarf planet at the edge of the solar system. The object, dubbed 2017 OF201, follows an extreme, oblong orbit ...

You can get in touch with Alyce by emailing a.collins@newsweek.com A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system.

Astronomers have discovered that the Jupiter, the largest planet in our Solar System, was once so big that it could have held 2,000 Earths. Jupiter is our system's oldest planet, forming from the ...

For years, astronomers have been searching for a ninth planet in our solar system (after giving Pluto the old heave-ho and demoting it to a dwarf planet) and now researchers say they’ve found a ...

This clustering has been interpreted as indirect evidence for the existence of another planet in the solar system, Planet X or Planet Nine, which could be gravitationally shepherding these objects ...

Earth has a newly-discovered neighbor in the solar system. But the heavenly body – possibly a dwarf planet à la Pluto – isn't a frequent visitor. Located beyond Neptune, its extreme orbit ...

Vesta had been thought to have been the last protoplanet, a leftover remnant from the early days of our solar system that never quite made it as a fully fledged planet for some reason. As the ...

or even a primordial black hole—but nothing grips our human fascination like a distant planet, so far away from our solar system’s other worlds that it’s never been observed. Planet Nine ...