energy flow

The story of life in four spatial dimensions.

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One of the most puzzling questions in modern cosmology is why the density of matter and energy appears to be find tuned to the value that allowed life to evolve. For example the density of mass to energy in the early universe must have been very close to a specific value to explain how stars … Read more

Gravity or dark energy: which one will win?

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Before the discovery of Dark Energy cosmologists had two models of how the universe’s expansion would end. In first scenario, there would be enough matter in the universe to slow the expansion to the point where, like the baseball, it would come to a halt and the gravitational forces associated with it would result in … Read more