Cosmology
- Astronomy
Nearby galaxy might explain what tore apart universe’s hydrogen
A local galaxy is leaking enough ultraviolet light to ionize surrounding hydrogen, which could explain how the earliest galaxies transformed the universe.
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- Cosmology
Gravitational wave discovery gives way to Milky Way dust
New polarization maps from the Planck satellite suggest that the BICEP2 announcement this year of primordial gravitational waves might be due entirely to dust in our galaxy.
- Astronomy
Mystery of missing lithium extends beyond Milky Way
Stars in cluster Messier 54, part of a nearby dwarf galaxy, have just as little lithium as stars in the Milky Way, suggesting that the mystery of the missing element is universal.
- Cosmology
Cosmologist’s ‘Cosmic Cocktail’ is a refreshing read
Katherine Freese shares her insights as a scientist studying dark matter and other mysterious components of the universe.
- Cosmology
Lab version of early universe fails to solve lithium problem
An experiment that imitated conditions from just after the Big Bang failed to explain why observed amounts of lithium don’t match those expected from theory.
- Cosmology
Paper reporting primordial gravitational waves published
The paper reporting the detection of primordial gravitational waves from a split-second after the Big Bang has finally been published.
- Cosmology
Dazzle or dust?
The unpredictable glow of galactic dust could undermine the biggest cosmological discovery in years.
- Cosmology
2014 Kavli Prize winners announced
Cosmic inflation, nanoscale imaging and a better understanding of memory earn million-dollar honors with the Kavli Prize.
- Cosmology
Dustup emerges over gravitational waves discovery
While cosmologists wait for data from Planck satellite, some worry that BICEP2 data actually come from our galaxy.
- Cosmology
The mysterious boundary
A debate has arisen over whether an astronaut passing a black hole’s point of no return would get stretched to death or flash-fried. Resolving the controversy may lead to new insights about gravity and more.
- Cosmology
Revamping the size of the universe
Despite new telescopes and technology, no one knows whether the universe is infinitely large or even if what has been observed is the only universe that exists.
