Waves of gravity found
本文作者： 21st
人类首次探测到引力波。词数 450 建议阅读时间 6分钟IN a galaxy far away, two black holes bumped into one another and sent a ripple (波) across the universe. For the next 1.3 billion years, this dramatic (壮观的) event was hidden from us. |  |
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