The orange dwarf Gliese 710 is expected to come within 0.1663 light-years or 10,520 astronomical units in about 1.29 million ...

He fell into hunting for Saturn’s moons in 2018, when his then academic adviser suggested the project for his Ph.D. at the University of British Columbia. It has been a fruitful search.

The canonical example is of course our own moon, a decently big chunk of rock that orbits Earth. But centuries ago the first telescopic observations of other planets revealed that many have moons ...

Astronomers have detected new moons around two of our solar system’s most unique and intriguing planets. The hidden moons were discovered orbiting Uranus and Neptune, and the discovery brings ...

The moon Triton tends to let off steam A photo montage of Neptune peeking behind its largest moon, Triton NASA / JPL Among Neptune’s 16 known moons, the largest, Triton, is an oddball.

In 2015, NASA’s New Horizons became the first spacecraft to explore Pluto and its moons up close after a nine-year journey from Earth. It showed Charon is composed of a variety of chemicals.

Neighboring gas and ice giants Jupiter and Neptune are replete with such moons, too. According to this hypothesis, the irregular moons could have once been trans-Neptunian objects, nudged into the ...

DOI: 10.1038/s41550-024-02349-x “Irregular moons possibly injected from the outer solar system by a stellar flyby", by Susanne Pfalzner, Amith Govind, and Frank W. Wagner, September 4 2024.

It also discovered icy geysers on the Neptunian moon Triton. Voyager 2 remains the only ship to visit those two worlds. Even then, the Voyagers weren’t finished—and neither was Stone.

However, its newest additions are too small to be spotted. Credit: NASA, ESA, CSA, STScI Neptunian moons Neptune’s pair of new moons brings the planet’s total count up to 16.

The other two Neptunian moons come in two flavors—bright and faint. The bright one, currently known as S/2002 N5, is 15 miles across and takes 9 years to orbit Neptune.

Both moons were first seen in September 2021. The brighter of the two Neptune moons is about 23 kilometers (about 14 miles) in size, and takes almost nine years to orbit the ice giant.