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

Amanda Kooser covers the quirky side of science and space. A close-up photo taken by the Curiosity rover shows pure yellow sulfur crystals within a rock. NASA’s Curiosity rover ran over a rock ...

Pure Quartz (circled in yellow), meanwhile ... I don’t believe you can find this anywhere else, so good luck. Sulfur – While it is possible to find Sulfur nodes out in the wild, the best ...

Sulfur is another element. It contains only sulfur atoms, and nothing else, so it is pure. When we mix two different pure substances together, like this, it’s a mixture. This is now a mixture of ...