"How can we see a black hole?" (Ask an Astronomer) from Ask an Astronomer

Ask an Astronomer

NASA's Spitzer Science Center / IPAC / NASA / Caltech

"How can we see a black hole?" (Ask an Astronomer)

1 seconds Posted Aug 24, 2006 at 12:00 am.

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If no light escapes from a black hole, how can we detect them? 'Ask an Astronomer' explains.