The moon's orbit around the Earth isn't a perfect circle, so it gets nearer and farther as it swings around. A so-called ...

Jupiter's moon Io stands alone among the solar system's moons. It has more than 400 active volcanoes, and its surface is home ...

Looking for a sky event this week? Check out our full Sky This Week column. November 4: Two shadows and a moon cross Jupiter ...

NASA’s James Webb Space Telescope (JWST) has captured an extraordinary and unprecedented sight: a moon-forming disk surrounding a young, giant exoplanet located roughly 625 light years ...

This article lists the top 7 largest moons in our Solar System, detailing their size, the planet they orbit, and key ...