NASA's James Webb Space Telescope has spotted a tiny moon orbiting Uranus, expanding the number of the planet's known ...

Over millions of years, Uranus’s inner moons may have collided and spread out into rings. As the material in the rings diffused, they moved farther away from the planet. Eventually, that material can ...

A study published in The Astrophysical Journal reveals that the third planet from the star TRAPPIST-1 does not have an ...