Last Updated: Thursday, April 5, 2012, 18:55
Observations from two of European Space Agency’s space telescopes have been combined to create a multi-wavelength view of violent events taking place within the giant galaxy Centaurus A.
Last Updated: Saturday, September 5, 2009, 10:52
Andromeda and Triangulum, the two galaxies closest to our own, collided two to three billion years ago, changing the galactic structure, according to evidence unearthed by astronomers.
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