mercredi 14 août 2013

Universe might not be expanding after all

Huh.




Quote:








(Phys.org) —Cosmologist Christof Wetterich of the University of Heidelberg has uploaded a paper to the arXiv server in which he claims it's possible that the theory of expansion of the universe might be incorrect. He suggests instead that the redshift observed by researchers here on Earth might be caused by an increase in the mass in the universe.

For nearly a century, the consensus among astrophysicists has been that the universe started with a Big Bang and has been expanding ever since. This hypothesis formed because researchers found that in analyzing the light emitted from stars, a redshift occurred—where its frequency changes as an object that emits light moves away from us. But Wetterich says the redshift might me due to something else—an increase in the total mass in the universe.



Read more at: http://phys.org/news/2013-08-cosmolo...verse.html#jCp








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