This is possible because the gravity of the foreground cluster magnifies the light of the background galaxy."
Thursday, July 8, 2010
BBC News - Herschel telescope spies galaxy with cosmic 'zoom lens'
BBC News - Herschel telescope spies galaxy with cosmic 'zoom lens': "By viewing a huge cluster of galaxies, Herschel has been able to study in detail an even more distant object.
Labels:
astronomy,
spacetime structure
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