Particle Physics & Astrophysics

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Physicists Find Evidence of Cosmic Inflation

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 of the Big Bang."

Symmetry: 'Particle Fever' Opens in the US

Particle Fever is a documentary that follows scientists involved in research at the Large Hadron Collider, including the ATLAS Experiment in which SLAC participates. The film opens this week in select theaters across the United States.

NASA: With A Deadly Embrace, 'Spidery' Pulsars Consume Their Mates

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 that contain rapidly spinning neutron stars, also known as pulsars.

Cosmic Rays on Demand

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 atmosphere, the results could benefit a broad range of other experiments.

SLAC Research Makes Science Magazine's Top 10 of 2013

Editors of the journal Science, published by the American Association for the Advancement of Science, have selected their annual Top 10 Science Breakthroughs of the Year. On the list: Work by SLAC researchers pinning down the origin of cosmic rays.

Symmetry: The Universe's Earliest Moments

How is it possible to look at the earliest moments of the universe? Physicists have their ways—and what they find out will tell us a lot about how the universe works today and how it will unfold in the future.

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