During the inflationary epoch the Universe underwent an exponential expansion driven by a scalar inflaton field. Quantum fluctuations of this field and of the metric were stretched beyond the Hubble ...
As physicists continue their struggle to find and explain the origin of dark matter, the approximately 80% of the matter in the universe that we can't see and so far haven't been able to detect, ...
Some of the hardest questions in cosmology begin where the usual math gives up. Push Einstein’s theory far enough back toward ...
Inflationary cosmology posits a brief epoch of accelerated expansion driven by one or more scalar fields. In realistic scenarios, quantum fluctuations on super-Hubble scales accumulate and induce ...
Repulsive gravity at the quantum scale would have flattened out inhomogeneities in the early universe First light The cosmic microwave background, as imaged by the European Space Agency’s Planck ...
The Daily Galaxy on MSN
Scientists use supercomputer simulations to investigate what came before the big bang
For decades, one of the biggest questions in cosmology has remained frustratingly out of reach: what, if anything, existed ...
BBC Sky at Night Magazine on MSNOpinion
People think science is about the truth. It's not – why everything we know about the universe could be mere guesswork
Are space science, cosmology and astronomy just guesswork?
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