Through a vast ocean, Jupiter's moon Europa is an exciting target for research in the search for life. Two space probes are ...

Astronomers recently detected a stray quasi-moon in our planet’s orbit, but it's hardly the first stowaway to hang out around ...

At a young age, we're told how the sun warms Earth and makes life possible. That idea sticks with most of us for life. But ...

A moon is generally understood to be an object that orbits a planet (although what counts as a planet is itself a contentious matter). Beyond that, a more precise, official defini ...

Cutting-edge simulations show that Enceladus’ plumes are losing 20–40% less mass than earlier estimates suggested. The new ...

Astronomers have spotted a quasi-moon near Earth — and the small space rock has likely been hanging out near our planet unseen by telescopes for about 60 years, according to new research.Related video ...

It may not have had the speed of the race to the Moon in the 1960s, but for a nation that launched its first satellite only ...