When I see emeralds, it’s hard not to be drawn to their vivid, striking green. But what fascinates me most is their jardin – the natural inclusions that give each stone its own unique fingerprint.
Star formation across the universe has fallen dramatically over the past 4.5 billion years, but astronomers have uncovered a surprising twist: the supply of neutral hydrogen, a key ingredient for ...
Space scientists have revealed a gallery of ‘cosmic gems’. A new series of images from NASA’s Chandra X-ray Observatory and other telescopes displays a collection of galaxies showcasing their variety.
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