目前我们已经知道的宇宙中最冷的地方是所谓回飞棒星云(Boomerang Nebula)，它距离处于半人马座中的地球约有5000光年。
The coldest known place in the universe is the Boomerang Nebula, 5, 000 light years away from us in the constellation Centaurus.
一点一点地，我们建立起这样一幅图景：我们以及我们的地球只不过是宇宙瀚海星云中的沧海一粟。
Bit by bit, we have pieced together incredible vistas of creation next to which we and our entire Earth are less than ants in an anthill.
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