This image from the Spitzer Space Telescope (not to be confused with Elliot Spitzer of call girl fame) shows the Andromedea Galaxy in infrared and x-ray wavelengths. The infrared light from dust shows up as red and old stars as blue. The huge spiral galaxy is 2.5 million light-years away, a stone's throw when compared to other celestial distances and is over twice the diameter of our own Milky Way.Andromeda holds around 1 trillion stars, compared to 4 hundred billion for the Milky Way. See more at the Daily Galaxy.
I'm setting course for Rigel 5!
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