Tag

Rubies

All articles tagged with #rubies

space-and-spaceflight11 days ago•15 min saved

Mars Gems: Tiny Ruby-Like Crystals Spotted by Perseverance

NASA’s Perseverance rover found minuscule, 0.2 mm grains of chromium-bearing corundum inside pebbles near the rim of Jezero Crater on Mars. Using the SuperCam laser, scientists observed luminescent signatures indicating ruby- or sapphire-like material, though exact composition remains uncertain. The crystals are thought to have been delivered by meteorite impacts rather than formed in situ, and their discovery suggests Mars could host other precious minerals. Findings were presented at the Lunar and Planetary Science Conference in Texas.

via Gizmodo|

#corundum #mars #perseverance

space16 days ago•97 min saved

Mars rocks yield tiny ruby-like crystals, sparking sapphire speculation

NASA’s Perseverance rover analyzed float rocks at Jezero Crater and detected signatures of corundum with chromium consistent with rubies. The crystals are extremely small (under 0.2 mm) and may be other corundum varieties such as sapphires, so a definitive identification can’t yet be made. Their origin is unclear, likely linked to high-temperature/high-pressure conditions from impacts or hydrothermal processes, and the rocks are out of their original context, requiring more samples for confirmation. Researchers note Mars may host other gemstone-bearing minerals in other areas as well.

via Live Science|

#corundum #mars #perseverance

science25 days ago•49 min saved

Webb telescope uncovers mysterious red dots, leaving scientists guessing

NASA's James Webb Space Telescope has detected hundreds of tiny red points—dubbed little red dots (LRDs)—in deep-field images. Their nature remains uncertain, with leading ideas ranging from growing black holes shrouded by gas or dust to exotic 'black hole star' or quasi-star scenarios, and even hints from discoveries like 'The Cliff' that a new kind of cosmic object may exist; researchers hope closer local LRDs and continued Webb observations will reveal how these objects fit into black hole formation and galaxy evolution.

via Yahoo|

#black-holes #james-webb #little-red-dots

royal-fashion2 years ago•1 min saved

"Danish Royalty: Queen Mary's Majestic Coronation Look and the New Era of King Fredrick X"

Queen Mary's coronation look in a majestic white draped dress and rubies matched the Danish national flag as she acceded the throne as the new Queen of Denmark, alongside her husband King Fredrik X. Her sophisticated ensemble, designed by Soeren Le Schmidt, featured a slim silhouette with a scarf-like pleated detail and was adorned with earrings and a brooch from the Danish Ruby Parure set, the latter featuring an illustration of her mother-in-law, former Queen Margrethe II.

via NDTV|

#coronation #danish-monarchy #queen-mary