This mottled landscape showing the impact crater Tycho is among the most violent-looking places on our Moon. Astronomers didn’t aim NASA’s Hubble Space Telescope to study Tycho, however. The ...

The discovery expands Uranus’s known family of satellites to 29, with the tiny moon measuring just 6 miles across.

This new moon is the 14th of Uranus's small moons, which include Miranda, Ariel, Umbriel, Titania, and Oberon. Ultimately, ...

A year after discovering Pluto's fourth moon, "P4," astronomers have learned of a fifth thanks to new images from the Hubble Space Telescope.

A rare black moon will happen tonight Aug. 22-23. Don't worry too much if you miss it, although it won't happen again for ...

It shows some 10,000 galaxies detectable in an area of sky just 2.4 arcminutes square, which is less than a tenth of the diameter of the Full Moon in the night sky. However, Hubble can only see so far ...

That was made more pressing by the James Webb Space Telescope’s Near-Infrared Camera catching a dim, six-mile-wide moon ...

NASA said a tiny moon has been found by the Webb Space Telescope orbiting the planet Uranus. The moon is only six miles wide ...