A Comet From Another Star Hints That Our Solar System Isn't One-Of-A-Kind
The comet, 2I/Borisov, looks surprisingly like comets closer to home. It's a sign that the processes that formed the sun and planets are at work elsewhere in the universe.
Đọc thêm tại NPR
at December 6, 2019 at 01:33AM
Health & Science
Thứ Sáu, 6 tháng 12, 2019
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