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Title: Gravitational Lensing

In a long line of intellectual triumphs, Einstein’s theory of general relativity was his greatest and most imaginative. It tells us that what we experience as gravity can be most accurately described as the bending of space itself. This idea leads to consequences, including gravitational lensing, which is caused by light traveling in this curved space. This is works in a way analogous to a lens (and hence the name). In this video, Fermilab’s Dr. Don Lincoln explains a little general relativity, a little gravitational lensing, and tells us how this phenomenon allows us to map out the matter of the entire universe, including the otherwise-invisible dark matter.
Authors:
Publication Date:
OSTI Identifier:
1189896
Resource Type:
Other
Research Org:
FNAL (Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States))
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
99 GENERAL AND MISCELLANEOUS PARTICLE PHYSICS; COSMOLOGY; LENS; GRAVITATIONAL LENS; SPACE; GENERAL RELATIVITY; EINSTEIN; DARK MATTER; LENSING MASS; DES; DARK ENERGY SURVEY