File:X-ray 'Echoes' Probe Habitat of Monster Black Hole.ogv

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Summary

Description	English: Astronomers using data from the European Space Agency’s XMM-Newton satellite have found a long-sought X-ray signal from NGC 4151, a galaxy that contains a supermassive black hole. When the black hole’s X-ray source flares, its accretion disk reflects the emission about half an hour later. The discovery promises a new way to unravel what’s happening in the neighborhood of these powerful objects.
Date	20 March 2012
Source	Goddard Multimedia
Author	NASA/Goddard Space Flight Center

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	13:02, 4 June 2012		1 min 11 s, 1,280 × 720 (28.72 MB)	Originalwana	{{Information \|Description ={{en\|1=Astronomers using data from the European Space Agency’s XMM-Newton satellite have found a long-sought X-ray signal from NGC 4151, a galaxy that contains a supermassive [[Black hole\|bl...

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