Physicists search for new physics in primordial quantum fluctuations
Repulsive gravity as an alternative to dark energy (Part 2: In the quantum vacuum)
Could the Big Bang have been a quick conversion of antimatter into matter?
Big Bang simulated in metamaterial shows time travel is impossible
Revised theory of gravity doesn't predict a Big Bang
Is the universe a bubble? Let's check
Perimeter Associate Faculty member Matthew Johnson and his colleagues are working to bring the multiverse hypothesis, which to some sounds like a fanciful tale, firmly into the realm of testable science.
Small, but plentiful: How the faintest galaxies illuminated the early universe
(Phys.org) —Astronomers investigating behaviour of the universe shortly after the Big Bang have made a surprising discovery: the properties of the early universe are determined by the smallest galaxies. ...
Big Bang breakthrough team allows they may be wrong
American astrophysicists who announced just months ago what they deemed a breakthrough in confirming how the universe was born now admit they may have got it wrong.
Study finds 'lumpy' universe cannot explain cosmic acceleration
(Phys.org) —Astrophysicists at The University of Texas at Dallas are helping to better define the nature of the cosmos by examining why the universe appears to be expanding at an accelerating pace.
Blogger claims BICEP2 team acknowledging possible error in discovery of evidence of gravitational waves
First direct evidence of cosmic inflation (Update)
(Phys.org) —Almost 14 billion years ago, the universe we inhabit burst into existence in an extraordinary event that initiated the Big Bang. In the first fleeting fraction of a second, the universe expanded ...
Researchers propose a new way to detect the elusive graviton
(Phys.org) —Among the four fundamental forces of nature, only gravity has not had a basic unit, or quanta, detected. Physicists expect that gravitational force is transmitted by an elementary particle called a graviton, ...
Massive neutrinos solve a cosmological conundrum
(Phys.org) —Scientists have solved a major problem with the current standard model of cosmology by combining results from the Planck spacecraft and measurements of gravitational lensing to deduce the mass ...
'Oldest star' found from iron fingerprint (Update)
As the Big Bang's name suggests, the universe burst into formation from an immense explosion, creating a vast soup of particles. Gigantic clouds of primordial soup, made mainly of hydrogen and helium, eventually ...