Explanation: Our Earth is not at rest. The Earth moves around the Sun. The Sun orbits the center of the Milky Way Galaxy. The Milky Way Galaxy orbits in the Local Group of Galaxies. The Local Group falls toward the Virgo Cluster of Galaxies. But these speeds are less than the speed that all of these objects together move relative to the cosmic microwave background radiation (CMBR). In the above all-sky map from the COBE satellite, radiation in the Earth's direction of motion appears blueshifted and hence hotter, while radiation on the opposite side of the sky is redshifted and colder. The map indicates that the Local Group moves at about 600 kilometers per second relative to this primordial radiation. This high speed was initially unexpected and its magnitude is still unexplained. Why are we moving so fast? What is out there?

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: COBE - fonovoe izluchenie - mikrovolnovoe fonovoe izluchenie Publikacii so slovami: COBE - fonovoe izluchenie - mikrovolnovoe fonovoe izluchenie
Sm. takzhe: Zavihreniya reliktovogo mikrovolnovogo fona ukazyvayut na inflyaciyu Holodnoe pyatno v reliktovom izluchenii Novoe otkrytie "Planka". Mlechnyi Put' v mikrovolnovom diapazone Dipol' COBE: dvizhenie skvoz' Vselennuyu Osushestvlen zapusk sputnikov "Gershel'" i "Plank". Nashei Vselennoi 13,73 milliardov let Vse publikacii na tu zhe temu >>