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The Cartwheel Galaxy
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The Cartwheel Galaxy
Credit & Copyright: NASA, Hubble Space Telescope
Explanation: The Cartwheel Galaxy shows a ring that is the result of a collision between a small and a large galaxy. After a small galaxy has moved through a big galaxy - in this case one that probably resembled our own Milky Way - a star formation wave moves out from the impact point like ripples across the surface of a pond. When galaxies collide it is rare that any two stars actually collide. Gravity, however, causes density waves to move out through the galaxy which in turn triggers the formation of hot, bright young stars, producing the ring that we see in this picture.

For more information see NASA, Hubble Space Telescope Scientific Institute press release.

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Pn Vt Sr Cht Pt Sb Vs
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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.

Russkii tekst
Based on Astronomy Picture Of the Day
Publikacii s klyuchevymi slovami: Cartwheel galaxy - vzaimodeistvuyushie galaktiki - zvezdoobrazovanie
Publikacii so slovami: Cartwheel galaxy - vzaimodeistvuyushie galaktiki - zvezdoobrazovanie
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