Cosmic inflation refers to a period of rapid, accelerated expansion that scientists think took place about 14 billion years ago.

Astrophysicists inspire space-related projects at a 24-hour hack-a-thon in San Francisco.

In September, DES will make data collected in its first season freely available to researchers.

A team of scientists generated a giant cosmic simulation—and now they're giving it away.

Brian Greene welcomes the Internet to physics class with World Science U.

LSST Will Capture Unprecedented View of Night Sky

With two SLAC researchers in the lead, an analysis of the enigmatic Fermi bubbles has narrowed down the number of possibilities for their origin, but hasn't completely solved the puzzle.

Step on a scale and you’ll get a quick measure of your weight. Weighing galaxy clusters, groups of hundreds or thousands of galaxies bound together by gravity, isn’t so easy. But scientists have many ways to do it.

Efforts are already underway to ensure that the data the Large Synoptic Survey Telescope  collects will be ready to be mined for scientific gold.

Students estimate their way through pop culture problems to learn a life skill.

Differences between two types of black-hole-powered galaxies may reflect a change in how the galaxies extract energy from their central black holes.

The Particle Physics Project Prioritization Panel’s report, released today, recommends a strategic path forward for US particle physics.