Joined: 13 Sep 12
I ran across this story about a debate over the number of spiral arms in the galaxy (2 versus 4):
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Joined: 9 May 10
It is hard to determine from our point of view what the exact shape of our galaxy is. For a long time it was thought that the Milky Way resembled the Andromeda galaxy but was somewhat smaller.
My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events.
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Joined: 28 Oct 09
Nature World News says:
"The 12-year-long study of massive stars in the Milky Way conducted by Red MSX Source (RMS) survey led by University of Leeds astronomers scoured the galaxy for massive young stellar objects, which are uncommonly large. These massive stars [live] shorter lives than their lower mass counterparts, which astronomers utilized when conducting their survey. As these massive stars die relatively quickly, they are only found in the arms of the galaxy where they formed; they have no time to move elsewhere."
Both surveys were looking for different things though.
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