Black hole on our doorstep
Sep 30, 2020
1 minute
![f0012-01](https://article-imgs.scribdassets.com/1biavxev9c85mbgo/images/fileTBBA3JDB.jpg)
ASTRONOMY Black holes are invisible, because no radiation can escape them. The only way that astronomers can spot them is by observing how matter close to them is influenced by their intense gravity.
Astrophysicists from
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