Scientists say dark matter doesn't exist
Posted on Wednesday, 31 October, 2007 | 3 comments
Two canadian astronomers think there is a good reason dark matter, a mysterious substance thought to make up the bulk of matter in the universe, has never been directly detected: It doesn't exist. Dark matter was invoked to explain how galaxies stick together.The visible matter alone in galaxies—stars, gas and dust—is nowhere near enough to hold them together, so scientists reasoned there must be something invisible that exerts gravity and is central to all galaxies.
View: Full article | Source: Space.com Discuss: View comments (3)
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Recent comments on this story
#1 Posted by DieChecker on 31 October, 2007, 6:05Very interesting. Seems about as likely as Dark Matter. If Dark Matter existed and made up the bulk of all matter, don't you think we would have laid hands on some of it by now?
#2 Posted by Torgo on 31 October, 2007, 9:41Not necessarily. If the stuff ONLY interacts with normal matter through gravity, it would ONLY be possible to see it through its gravitational effects. Even if, like Neutrinos, it only interacts with gravity and the weak nuclear force, we might not see much of it - we can detect neutrinos because...
#3 Posted by III on 31 October, 2007, 9:41Dark matter always seemed like a "god" explanation to me.If you can't explain it, make up invisible stuff to have it make sense for ya.Nice to see not all scientists accept the theory.
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