View Full Version : ‘Green Valley’ Of Galaxies Shows Off Gas And Star Formation

2014-Feb-24, 07:10 PM
We keep saying this: the universe is more complex than it appears.*Conventional thinking in galaxy research postulates that spiral galaxies have star-forming areas, while ellipticals do not due to a lack of gas. While this thinking has been debunked, there’s now emerging research showing a “green valley” of galaxies somewhat in between these two types. […]

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