The far distant fates of the Universe offer a number of possibilities, but if dark energy is truly a constant, as the data indicates, it will continue to follow the red curve, leading to the long-term ...

Add Yahoo as a preferred source to see more of our stories on Google. Dark energy is one of the most mysterious concepts in all of the cosmos. We know very little about what it is but it just might ...

Our best models of the cosmos don't add up — but that could change if the universe is actually made of a viscous 'fluid,' a ...

The cosmological constant is presumably an enigmatic form of matter or energy that acts in opposition to gravity and is considered by many physicists to be equivalent to dark energy. Nobody really ...

Dark energy remains one of the most stubborn puzzles in modern science. Despite decades of observation and increasingly powerful telescopes, its true nature is still unknown. Now, scientists involved ...

The long-standing problem of the cosmological constant, described both as “the worst prediction in the history of physics” and by Einstein as his “biggest blunder”, is being tackled with renewed ...

As I finished my PhD in 1992, the universe was full of mystery – we didn’t even know exactly what it is made of. One could argue that cosmologists had made little progress in our understanding of ...

Physicists are now celebrating the 100th anniversary of the cosmological constant. On this occasion, two recent articles highlight its role in modern physics and cosmology. Before becoming widely ...

The original version of this story appeared in Quanta Magazine. Physicists have deduced subtle hints that the mysterious “dark” energy that drives the universe to expand faster and faster may be ...

What’s powering the Universal acceleration? This may be the biggest question is modern cosmology, the study of the structure and evolution the Universe. We’ve known for nearly a century that the ...

Imagine, if you can, what it would mean to have a Universe with absolutely nothing in it. You could take all the various quanta of matter and energy and remove them, leaving a Universe with no ...

What if outer space isn’t empty, but behaves like a thick, slow-moving fluid? Anew study suggests just that, and it could help solve a puzzling mismatch between current models of the universe and ...