The NASA/ESA/CSA James Webb Space Telescope has discovered a new moon orbiting Uranus. The moon, designated S/2025 U1, is ...

Astronomers are testing a quieter way of searching for moons beyond the solar system, using careful measurements of motion ...

The object dubbed Earth's "second moon" is actually a quasi-satellite that's accompanied the planet since 1957 — not a true ...

Scientists with expertise in geophysics at Washington State University have developed an alternative pathway for the transport of nutrients to the deep ocean under Europa’s exterior surface. Europa, a ...

Earth has one true moon, but there are also several asteroids known as quasi-moons that are in orbit with the sun. A newly discovered asteroid, 2025 PN7, is the seventh confirmed quasi-moon that ...

The moon is our nearest neighbor in space, at an average distance of about 238,000 miles. As it orbits our Earth every month or so, it appears to pass by stars and planets in our night sky … or, at ...

"In our solar system, the most massive moon is Ganymede, which is still extremely small compared to what we are inferring ...

NASA prepares to launch Artemis II mission in September, sending four astronauts around the Moon for the first crewed lunar ...

American astronauts who return to the moon’s surface in the years ahead for the first time in more than half a century will have the difficult and unprecedented task of setting the stage for a ...