On Mars, a surprise was hiding in plain sight. A tall mound near the edge of Jezero Crater turned out to be something ...

Ga. Tech’s James Wray explains how a massive volcano hiding in Mars’ Jezero Crater changes what we know about the red planet’s past.

Mars isn’t a bright, fire-engine red, but the iron oxide in its rocks makes it appear redder than other planets, especially ...

No one expected these glittering bits among the gray lunar dust back then. The beads, smaller than grains of sand, formed ...

Curious Kids is a series for children of all ages. If you have a question you'd like an expert to answer, send it to ...