What's up in

cosmology

David Spergel
Q&A

A Bold Critic of the Big Bang’s ‘Smoking Gun’

July 3, 2014

The cosmologist David Spergel explains why a widely publicized gravitational-wave discovery could be wrong, and how the “overreaching” study could affect the public’s perception of science.

Q&A

Early-Universe Explorer Looks for Answers

July 3, 2014

Chao-Lin Kuo, who helped design the experiment that claimed to have found evidence of gravitational waves from the Big Bang, isn’t bothered by criticism that cosmic dust may account for his results.

Bicep2 B-modes
cosmology

Possible Echo of Big Bang Detected

March 17, 2014

Scientists report the possible discovery of primordial gravitational waves, ripples in space-time that carry a record of how the universe began.

Gamma Ray Excess
astrophysics

Case for Dark Matter Signal Strengthens

March 3, 2014

A new analysis strengthens the case that gamma rays emanating from the center of the Milky Way come from dark matter particles known as WIMPs.

cosmology

Big Bang Secrets Swirling in a Fluid Universe

February 12, 2014

With a new approach that treats the universe as a fluid, cosmologists plan to tease out the fine details of the Big Bang from its behavior and evolution.

Data Driven: The New Big Science

A Digital Copy of the Universe, Encrypted

October 2, 2013

As physics prepares for ambitious projects like the Large Synoptic Survey Telescope, the field is seeking new methods of data-driven discovery.

particle physics

In Hunt for Dark Matter, Promises to Keep?

July 18, 2013

Whispers of the elusive particles are becoming stronger with a series of signals that appear to be zeroing in on a leading contender.

cosmology

Lopsided Map Offers Clues to Big Bang

June 24, 2013

Theoretical cosmologists are piecing together a cosmic origin story from a surprising anomaly in the recently released Planck satellite image.

theoretical physics

Is Nature Unnatural?

May 24, 2013

Decades of confounding experiments have physicists considering a startling possibility: The universe might not make sense.