Cosmology
- 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.
- Cosmology
Universe re-created in computer simulation
The Illustris Project traces the detailed evolution of the universe starting from 12 million years after the Big Bang.
- Cosmology
See the sky in a different light
An interactive map lets you explore the galaxy with infrared light.
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- Cosmology
Galaxy’s gamma-ray glow may expose dark matter
An excess of gamma rays at the center of the Milky Way could be a signature of dark matter.
- Astronomy
Neutrinos from space rain down from all directions
Using Earth as a filter, scientists detect thousands of neutrinos from beyond the solar system.
- Cosmology
Speed of early universe’s expansion determined
The rate known as the Hubble constant is measured with great precision for the universe of 11 billion years ago.
- Cosmology
Maybe time’s arrow needs ergodicity as well as entropy
Explaining the arrow of time might require an equilibrium universe with hidden ergodic dynamics.
- Astronomy
This winter warrior made the gravitational waves discovery possible
Engineer Steffen Richter played an important role in the recent gravitational waves discovery, wintering at the Amundsen-Scott research station at the South Pole and making daily treks to keep the BICEP2 telescope running.
- Cosmology
Cosmic question mark
Two ways of measuring the universe’s expansion rate disagree by about 10 percent. One of the methods may be flawed. Or it could be that a hitherto unobserved phenomenon is at work.
- Cosmology
Top 10 cosmological discoveries
The cosmic microwave background radiation has played a part in many of cosmology’s greatest discoveries.
