Orgnobelprizesphysicslaureates2011popularphysicsprize2

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Unformatted text preview: ed, the radia<ons detected by us now would be in the microwave range in the electromagne<c (EM) spectrum. •  The remnant heat leD over from the Big Bang, called the Cosmic Microwave Background Radia=on (CMBR), matched a blackbody curve for a radiator at about 3 K (kelvins). •  This CMBR was discovered in 1965. It is coming from all direc=ons in space, but not perfectly uniform:  This color ­coded image of the CMBR is effec<vely a “photo” of the Universe about 13.7 x 109 y ago. Large ­scale collec<ng of maJer had already begun, but galaxies, stars, and planets have not yet formed. 11 hJp://missionscience.nasa.gov/images/ems/emsMicrowaves_mainContent_microwave ­background_WMAP.png The Nobel Prize in Physics 2011 hJp://www.nobelprize.org/nobel_prizes/physics/laureates/2011/popular ­physicsprize2011.pdf 12 Black Holes •  A black hole is an object that exerts a gravita=onal aNrac=on on other bodies but cannot emit any light of its own. •  MaJer in a black hole is squeezed into a =ny region, and thus the gravity is so huge that even light cannot escape from it—invisible. hJp://www.outerspaceuniverse.org/the ­forma<on ­of ­stellar ­mass ­black ­hole...
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This document was uploaded on 03/22/2014.

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