Never-before-seen crystals found in perfectly preserved meteorite dust

Researchers have discovered never-before-seen types of crystals hidden in tiny specks of perfectly preserved meteorite dust. The dust was left behind by a huge space rock that exploded over Chelyabinsk, Russia nine years ago.

On February 15, 2013, an asteroid measuring 59 feet (18 meters) in diameter and weighing 12,125 tons (11,000 metric tons) entered Earth’s atmosphere at approximately 41,600 mph (66,950 km/h). Fortunately, the meteor exploded about 23.3 kilometers above the city of Chelyabinsk in southern Russia, flooding the surrounding region with tiny meteorites and avoiding a single colossal collision with the surface. Experts at the time described the event as a major wake-up call about the dangers asteroids pose to the planet.

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