Once again, the infamous cosmological constant is rearing its head. A constant of integration, this mathematical relic has some serious implications for the end of the universe. We thought we had it nailed down from the last batch of observations, but maybe we were measuring the wrong thing.
The going theory among cosmologists is that the universe will eventually rip itself to shreds owing to its ever-accelerating rate of expansion. Not so, say a pair of physicists who have just taken it upon themselves to reformulate an integral facet of general relativity: the cosmological constant.
An historian of science from New York University has re-interpreted a correspondence between Albert Einstein and Erwin Schrodinger in which the two scientists argued about the nature of the cosmological constant — a kluge that Einstein embedded in his general theory of relativity to explain why the Universe was…
Dark energy accounts for 70% of everything in the universe, and yet we know almost nothing about it. Now a new model meant to explain some impossibly massive galaxy clusters is here, to make dark energy even more fiendishly complex.
Dark energy is perhaps the most mysterious thing in the cosmos, and yet it accounts for 73% of the observable universe. What's more, the amount of dark energy seems to be increasing...and that could ultimately rip apart the entire universe.