Assuming you’ve accepted Pluto’s demotion, Uranus and Neptune are the two planets in our Solar System farthest from Earth. That distance means humanity is still learning a lot about them. Some of ...

Astronomers have discovered a moon with a unique orbit consisting of oscillating patterns. This allows it to avoid collision with a neighboring satellite as they whirl around Neptune—a process they ...

Our solar system has a few new entries with the recent discovery of three moons of Uranus and Neptune. These ice giant planets are so far away that it is difficult to detect small moons orbiting them, ...

A diminutive nugget of a moon has been discovered lurking in the inner orbit of Neptune. The moon, dubbed Hippocamp for the half-horse, half-fish sea monster from Greek legend, is about the size of ...

CAPE CANAVERAL, Fla. (AP) — Neptune's newest and tiniest moon is probably an ancient piece of a much larger moon orbiting unusually close. In the journal Nature on Wednesday, California astronomers ...

PASADENA, Calif. — Two of Neptune’s innermost moons perform a strange dance to avoid each other that is weird and completely unique compared to all known orbits, according to new research. Naiad and ...

The planets may get top billing in the solar system, but they are far outnumbered by the moons. There are hundreds, and they come in all kinds of varieties, like a cosmic tray of assorted chocolates.

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Nearly eight thousand light-years away from Earth, there’s a star ...

WASHINGTON — Astronomers have found three previously unknown moons in our solar system — two additional moons circling Neptune and one around Uranus. The distant tiny moons were spotted using powerful ...