A faint and frigid little moon doesn't have to go by "Neptune XIV" anymore. Astronomers have given a name — "Hippocamp" — to the most recently discovered moon of Neptune, which also formerly went by S ...

Astronomers announced that they have discovered new moons around Neptune and Uranus. The International Astronomical Union's Minor Planet Center published its findings Friday, showing the first new ...

Neptune may be one of the more mysterious planets in the Solar System, but a new study notes that two of its moons, Naiad and Thalassa, are locked in a "dance of avoidance." The research, which can be ...

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Far out on the edge of the solar system, chilly Neptune takes 165 years to complete a single orbit around the sun. And in orbit around Neptune are 14 moons, some of which are even geologically active.

For the first time in decades, a new tiny moon has been found in orbit around the gas giant Neptune, according to a study published Wednesday in the journal Nature. Hippocamp, now known as Neptune's ...

Lying at the very outskirts of our solar system, the ice giant Neptune has long represented both a challenge and a mystery to astronomers and space explorers alike. The dark and cold planet, the ...

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 ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Astronomers are adding three newly discovered moons to our solar ...

Bobbing up and down like a carousel horse might not sound like a stable way to orbit a planet, but it works for one little moon of Neptune. The planet’s innermost known satellite, Naiad, has a tilted ...

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.