Astrophysics and cosmology

The recent BICEP2 discovery of evidence for cosmic inflation might point to new physics.

SLAC's Siegfried Glenzer has been selected to receive an Ernest Orlando Lawrence Award, presented by the U.S. Secretary of Energy to honor scientists across a range of fields.

Five years ago, the brightest source of X-rays on the planet lit up at SLAC. The Linac Coherent Light Source (LCLS) X-ray laser's scientific and technical progress since its momentous "first light" have been no less luminous, say those who...

Scientists from the Kavli Institute for Particle Astrophysics and Cosmology are helping build cameras for the Cherenkov Telescope Array, an advanced, ground-based gamma-ray observatory.

Scientists say collisions between dark matter particles might be the cause of a curious excess of gamma-ray light coming from the center of our ga

The Cosmic Microwave Background, leftover light from the big bang, carries a wealth of information about the universe—for those who can read it.

Two scientists at Stanford University and SLAC National Accelerator Laboratory made key contributions to the discovery of the first direct evidence for cosmic inflation – the rapid expansion of the infant universe in the first trillionth of a trillionth of...

Researchers from the BICEP2 collaboration have announced the first direct evidence supporting the theory of cosmic inflation. Their data also represent the first images of gravitational waves, or ripples in space-time. These waves have been described as the "first tremors...

Black widow spiders and their Australian cousins, known as redbacks, are notorious for their tainted love, expressed as an unsettling tendency to kill and devour their male partners. Astronomers have noted similar behavior among two rare breeds of binary system...

In a SLAC test facility, scientists have set the stage for an experiment that mimics what happens when incredibly energetic cosmic ray particles hit our atmosphere. While the experiment is part of ANITA, which sends balloon-borne instruments into the upper...

Teachers are using Google+ to bring their classes behind the scenes at national laboratories and to teach students about careers in STEM.

Scientists studying five years of data from the Fermi Gamma-ray Space Telescope have found the first gamma-ray variable pulsar.