News From the Field
Astronomers Measure the Elusive Extragalactic Background Light
May 24, 2013
This material is available primarily for archival purposes. Telephone numbers or other contact information may be out of date; please see current contact information at media contacts.Measuring the extragalactic background light (EBL) is no simple task, complicated by the fact that the Earth is lodged inside a bright solar system and a bright Milky Way. Now, a team of astronomers has come up with a solution that ingeniously overcomes the technical challenges of measuring EBL. The researchers propose that one answer to the problem of measuring EBL lies in measuring the attenuation--or weakening--of very-high-energy gamma rays from distant blazars.Full Story
University of California, Riverside
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