Why do some planets have moons and some don’t? – Siddharth, age 6, Texas On Earth, you can look up at night and see the Moon ...

Astronomers using the James Webb Space Telescope have captured breathtakingly detailed images of two giant exoplanets ...

According to the website, Earth spins faster when the Moon’s orbit takes it significantly north or south relative to the ...

Scientists have spotted 12 more moons around Jupiter, adding to an already-huge number that just seems to grow and grow. There's so many moons around this gas giant planet that astronomer Scott ...

Astronomers have discovered three previously unknown moons around Uranus and Neptune, the most distant planets in our solar system. The find includes one moon spotted orbiting Uranus — the first ...

Mercury is notoriously difficult to see from Earth, thanks to its proximity to the Sun. But on July 4, Mercury reaches its ...

The ringed gas giant Saturn has officially replaced Jupiter as the planet in our solar system with the most moons. The International Astronomical Union officially recognized 128 new moons orbiting ...

Astronomers say they have discovered more than 100 new moons around Saturn, possibly the result of cosmic smashups that left debris in the planet’s orbit as recently as 100 million years ago.

New Hubble observations reveal unexpected darkening on Uranus’ moons, challenging long-held assumptions about its ...

A mere decade ago, astronomers knew of just 62 moons around Saturn. Today the ringed planet boasts a staggering 274 official satellites. That’s more than any other world in the solar system ...

Hycean worlds are also called ocean worlds. They're planets covered in oceans that also have thick hydrogen atmospheres.