Why does Jupiter look like it has a surface – even though it doesn’t have one? – Sejal, age 7, Bangalore, India ...

Exoplanets can be quite different from Earth, but occasionally researchers find one that gives a sneak peak into what the ...

The Lafayette Meteorite, a chunk of Mars, has provided crucial insights into the Red Planet's geological history.

Scientists say they've discovered a "mega coral" three times bigger than the previous record holder - so huge they initially ...

Ever wondered what the most abundant element on Earth is? Or how the elements that make up our planet compare to those floating out in the vast universe?

After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the Kuiper Belt beyond Neptune — and they may soon have the opportunity to find ...

Emerging evidence suggests that plate tectonics, or the recycling of Earth's crust, may have begun much earlier than ...