The newfound satellite, only about six miles wide, becomes Uranus’ 29th known moon and orbits near the planet’s inner rings.

The provisionally named S/2025 U1 is so small it had gone unnoticed by probes and telescopes for the past 40 years.

Astronomers using the James Webb Space Telescope have found an unknown moon orbiting Uranus, bringing the planet’s total to ...

NASA’s James Webb Space Telescope has revealed a previously unknown moon orbiting Uranus, bringing the planet’s total to 29.

Astronomers have detected a previously unknown moon circling Uranus, marking a notable addition to our understanding of the ...

For decades, scientists puzzled over why Uranus seemed colder than expected. Now, an international research team led by the ...

A team of astronomers announced Tuesday that a new satellite measuring roughly 90 football fields across was discovered ...

Designated S/2025 U1, the newly discovered moon is so small and faint that astronomers are wondering if Uranus might be ...

Scientists have spotted a new moon orbiting Uranus that is so tiny it can be circumnavigated in just a few hours.

Before Voyager 2’s visit, scientists had to learn about Uranus by using Earth-based and airborne telescopes. By observing dips in starlight as a star passed behind Uranus, scientists knew Uranus ...

Voyager 2 at Uranus Almost everything we know about Uranus comes from a brief flyby by Voyager 2, which made a “Grand Tour” of the Solar System’s four giant planets–Jupiter, Saturn, Uranus ...

After completing its prime mission of flying by Jupiter and Saturn, Voyager 2 was sent on the right flight path to visit Uranus, which is about 2 billion miles (3 billion kilometers) away from the ...