NASA - NASA's Wise Raises Doubt About Asteroid Family Believed Responsible for Dinosaur Extinction

NASA's Wise Raises Doubt About Asteroid Family Believed Responsible for Dinosaur Extinction WASHINGTON -- Observations from NASA's Wide-field Infrared Survey Explorer (WISE) mission indicate the family of asteroids some believed was responsible for the demise of the dinosaurs is not likely the culprit, keeping the case open on one of Earth's greatest mysteries. While scientists are confident a lar

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恐竜絶滅の原因である隕石の起源と思われていた小惑星群の推定分裂時期が、可視光調査による160M年前からWISEで80M万年前に変わった。衝突（65M年前）までの時間余裕が15M年と短いので、この小惑星群ではないのかもと