April 2007 - A ‘five-star’ rated gravitational lens

Calendar Apr 2007

The most unique feature in a new image taken with the NASA/ESA Hubble Space Telescope is a group of five quasar images produced by a process called gravitational lensing, in which the gravitational field of a massive object - in this case, a cluster of galaxies - bends and amplifies light from an object - in this case, a quasar – farther behind it.

Credit:

European Space Agency, NASA, Keren Sharon (Tel-Aviv University) and Eran Ofek (CalTech)

About the Calendar

Id:cal200704
Year:2007
Month:4

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