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Physics

cosmology

Joint Dust Analysis Deflates Big Bang Signal

January 30, 2015

No definitive evidence for cosmic inflation is found, but support remains strong for the theory even as critics highlight its shortcomings as an explanation for how and why the universe began.

Q&A

Quantum Computing Without Qubits

January 22, 2015

A quantum computing pioneer explains why the near future of quantum computation may lie in simulators, not general-purpose quantum machines.

geometry

Scientists Conjure Curves From Flatness

January 6, 2015

Researchers have found a set of rules for imbuing flat surfaces with curvature, enabling them to form a virtually unlimited range of three-dimensional structures.

Computer Science

A Common Logic to Seeing Cats and Cosmos

December 4, 2014

New research suggests physicists, computers and brains employ the same procedure to tease out important features from among other irrelevant bits of data.

Reaching for the Multiverse
Infinity and Beyond: The Ultimate Test

Multiverse Collisions May Dot the Sky

November 10, 2014

Early in cosmic history, our universe may have bumped into another — a primordial clash that could have left traces in the Big Bang’s afterglow.

Infinity and Beyond: The Ultimate Test

In a Multiverse, What Are the Odds?

November 3, 2014

Testing the multiverse hypothesis requires measuring whether our universe is statistically typical among the infinite variety of universes. But infinity does a number on statistics.

astrophysics

Dwarf Galaxies Dim Hopes of Dark Matter

October 25, 2014

For five years physicists have been tantalized by possible evidence of dark matter in the Milky Way’s center. But new results from small satellite galaxies have complicated the story.

statistical physics

At the Far Ends of a New Universal Law

October 15, 2014

A potent theory has emerged explaining a mysterious statistical law that arises throughout physics and mathematics.

BICEP2 graphic.
cosmology

‘Big Bang Signal’ Could All Be Dust

September 21, 2014

Cosmic dust in the high latitudes of the Milky Way could account for the entire swirl pattern that had been presented as proof of a leading Big Bang theory, according to a new data analysis from the Planck satellite.