Almost six billion yr ago , two of the largest gravitational structures in the existence slammed into each other with velocity in the millions of nautical mile per hr . Galactic bunch are collections of Galax urceolata ( sometimes one thousand of them ) that seem to hang together in usurpation of the known police of physics . Not only did this ancient collision lead in a stunningly beautiful range , but it ’s give astrophysicists an important hint about the nature of dark matter . The figure above is a composite , combining data from the Hubble Space Telescope with x - ray of light imagery from the Chandra X - Ray Observatory . Hubble captured the blue-blooded areas by detecting the gravitative lensing of Light Within shining around the clump . dark-skinned affair in the bunch is make the lensing . The pinkish region is a volume of hot petrol , made of ordinary matter , which radiates the x - beam observe by Chandra . What ’s amazing about the image is how clearly it shows that the dark thing separated from the average matter when the clusters clash . The gases interacted with each other gravitationally , causing them to slacken down and “ mob up ” in the middle of the cluster . The dark matter apparently did not interact with itself , slide to the outer edge of the clustering . astronomer think the mass of all this non-white matter is what concord clusters together – without it , the Galax urceolata are moving too fast to stay together . The cluster collision provides a fate of unmediated evidence that black matter exists . ikon by : NASA / ESA . you’re able to see the full ikon in gamey - resolutionhere . Collision of beetleweed bunch captured by astronomers . [ EurkeAlert ! ]
AstronomyChandraDark matterNASAScienceSpace
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