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Scientists find closest known asteroid to fly by Earth（图）
Scientists closest known asteroid fly by Earth
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2020/8/27
On August 16, 2020, the Zwicky Transient Facility, a robotic survey camera located at the Palomar Observatory near San Diego, spotted an asteroid that had, just hours earlier, traveled only 1,830...
NASA Scientists Find Primordial Organic Matter in Tagish Lake Meteorite(图）
Organic Matter Solar System meteorite
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2006/12/8
November 30, 2006，NASA researchers at Johnson Space Center, Houston have found organic materials that formed in the most distant reaches of the early Solar System preserved in a unique meteorite. The ...