Put Saturn's 83 moons in perspective with this size comparison placing them on a London backdrop before zooming out to accommodate Titan.

Uranus' new moon, S/2025 U1, was discovered in February 2025 and is approximately 6 miles in diameter, orbiting Uranus at a ...

This MetaBallStudios video compares the size of Jupiter's 80 moons including Ganymede, the largest moon in our Solar System.

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

Prior to flybys, scientists used mathematical laws and observation to determine the characteristics of the planets.

Astronomers find a new moon orbiting Uranus, boosting its known satellites to 29 using the James Webb Space Telescope.

And Pluto's biggest "moon," Charon, is actually half the size of Pluto — big enough that it's often referred to as a binary planet instead of a moon.

If our moon were replaced by each planet in the solar system, Venus would create the most striking view in our night sky.

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