Jupiter’s icy moon Europa is a tantalizing target in the search for habitability in our Solar System. Its thick, global ice sheet overlies a warm, salty, chemically-rich ocean. But for

The light, rare element boron, better known as the primary component of borax, a longtime household cleaner, was almost mined to exhaustion in parts of the old American West. But

When the rover now named Perseverance landed in Jezero crater in early 2021, scientists already knew they had picked an interesting place to scope out. From space, they could see