Curiosity rover

Don’t be fooled—the “sierra” you see in the distance marks the edge of the enormous Gale Crater.

The confirmation of an incomplete carbon cycle on Mars has made it clear that a planet’s habitability is fragile.

Now more than a decade old, Curiosity continues to send back valuable data and captivating images from the Martian surface.

The finding adds another piece to the puzzle of the Red Planet’s past history.