A rock on Mars spilled a surprising yellow treasure after Curiosity accidentally cracked through its unremarkable exterior.

Oxides, sulfides, sulfates, carbonates, and halides are other major mineral classes. Many minerals form beautiful crystals, but the most prized of all are gemstones. Uncut gems often look fairly ...

Lava tubes on Earth have been studied for signs of ancient microbial life, providing a model for searching for life in similar structures on Mars. A comprehensive study of lava tubes—caves formed by c ...

NASA's Curiosity rover has made a groundbreaking discovery on Mars by uncovering pure sulfur crystals within a broken rock.

Through the intricate study of lava tubes—caves formed following volcanic eruptions when lava cools down—an international ...

The Mars rover made an incredible discovery on the Red Planet after accidentally splitting a rock. Yellow sulfur crystals ...

Through the intricate study of lava tubes -- caves formed following volcanic eruptions when lava cools down -- an international team of researchers has uncovered clues about Earth's ancient ...

Through the intricate study of lava tubes -- caves formed following volcanic eruptions when lava cools down -- an international team of researchers has uncovered clues about Earth’s ancient ...