No Big Bang? Quantum equation predicts universe has no beginning
Can dark energy be explained by symmetrons?
Is dark energy static or dynamic?
Repulsive gravity as an alternative to dark energy (Part 2: In the quantum vacuum)
Repulsive gravity as an alternative to dark energy (Part 1: In voids)
A second look at supernovae light: Universe's expansion may be understood without dark energy
Antimatter gravity could explain Universe's expansion
Statistical modeling could help us understand cosmic acceleration
Physicists propose mechanism that explains the origins of both dark matter and 'normal' matter
Galactic nuclei offer some indication of axionlike particles
New model of cosmic stickiness favors 'Big Rip' demise of universe
The universe can be a very sticky place, but just how sticky is a matter of debate.
NASA simulation suggests black holes may make ideal dark matter labs
A new NASA computer simulation shows that dark matter particles colliding in the extreme gravity of a black hole can produce strong, potentially observable gamma-ray light. Detecting this emission would provide ...
Accelerating universe? Not so fast
A University of Arizona-led team of astronomers found that the type of supernovae commonly used to measure distances in the universe fall into distinct populations not recognized before; the findings have ...
Astronomers identify the best supernovae for measuring cosmic distances
The brilliant explosions of dead stars have been used for years to illuminate the far-flung reaches of our cosmos. The explosions, called Type Ia supernovae, allow astronomers to measure the distances to ...