Neptune has 13 known moons. The largest by far is Triton, discovered by William Lassell just 17 days after the discovery of Neptune itself. It took a hundred years to discover the second, Nereid ...

Introducing Hippocamp—the smallest of Neptune’s seven inner moons. The recently discovered moon likely formed from a collision with another moon billions ...

Neptune’s largest natural satellite travels around its host planet in the opposite direction to the ice giant’s other satellites in what is known as a retrograde orbit.

The half-lit lunar disk will rise alongside the ringed giant Saturn and dimmer Neptune in the early morning hours of June 19, putting on a spectacular show just six hours after the moon hits its third ...

The United Launch Alliance's Atlas V rocket carried up 27 of Amazon's Project Kuiper satellites, named after the frigid fringes of our solar system beyond Neptune. Once released in orbit, the ...

Hippocamp is only the most recent result of the turbulent and violent history of Neptune’s satellite system. Proteus itself formed billions of years ago after a cataclysmic event involving ...

IN British Astronomical Association Circular No. 312 some details are given regarding the two newly discovered satellites of Uranus and Neptune, respectively; Both were discovered by Gerard P ...

Triton settled into a circular orbit and the debris from shattered Neptunian moons re-coalesced into a second generation of natural satellites.

Amazon’s first batch of internet satellites rocketed toward orbit Monday, the latest entry in the mega constellation market currently dominated by SpaceX’s thousands of Starlinks.

Today, the planets with the most known natural satellites are Saturn with 30 moons, Jupiter with 28, Uranus with 21 and Neptune with 8.

The gas giant planet Neptune in our solar system has 14 known moons, including the strange backwards-orbiting Triton. See what we know about Neptune's moons.

Stargazers oppose the fast-growing constellations of low-orbiting satellites, arguing they spoil observations. Others fear more satellite collisions.