Topics » Science & Technology April 18, 2012
Space Tornadoes, Baby Stars, and Ancient Galaxies
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Photo: NASA / JPL-Caltech / R. Kennicutt (Univ. AZ)
When Galaxies Collide
The Whirlpool Galaxy, the red spiral, and its companion galaxy, NG 5195 are 23 million light-years from Earth - that's relatively close. IRAC shows the warm dust in red, a sign of active star formation probably triggered by a collision between the two galaxies.
