
Martian Gem Found: Perseverance Detects Corundum in Jezero Rocks
NASA's Perseverance rover used time-resolved luminescence spectroscopy to identify corundum, a gemstone mineral that forms rubies and sapphires, in three plagioclase-rich float rocks at Jezero Crater—marking the first detection of corundum on Mars and suggesting formation under heat and fluids possibly tied to the crater's ancient impact; findings published in Geophysical Research Letters highlight new clues about Mars' geological history and the potential for sample-return studies.













