Cosmology

A pair of detectors that measure minute distortions in images of distant galaxies will probe the riddle of cosmic acceleration

NASA's Curiosity has completed its longest trek yet. The Mars rover journeyed more than 30 meters on its 29th Martian day, which ended September 5 at 2:37 A.M.

Upcoming telescope projects on Earth and in space will map out billions of stars and galaxies all around us

The matter-eating beast at the center of the Milky Way may actually account for Earth's existence and habitability

Hot stars booted out of their galactic homes may be responsible for creating the conditions that led to today's universe

In a new book, astronomer Bryan Gaensler explores the extremes of the universe

Three billion years after the big bang most galaxies were clumpy and odd-shaped, but at least one had already assumed a familiar form, and may elucidate how modern galaxies got their shapes

The past few years have not been the best of times for building observatories. But in a world of budget constraints and schedule delays, the LSST is bucking the trend

Join us for a live online chat about last week's Higgs news with physicist Michael Tuts of Columbia University. Tuts will help explain where physicists go from here

Astronomers observed light warped by the lensing effect of a massive galaxy cluster more than 10 billion light-years away, the most distant cluster ever responsible for perceived lensing. Evelyn Lamb reports

Go behind the scenes at CERN for the historic July 4 announcement