Particle Physics & Astrophysics

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March 19, 2014
News Feature
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 a trillionth of a second after the Big Bang.
Image - The BICEP2 detector shown in this electron-beam micrograph works by converting the light from the cosmic microwave background into heat. A titanium film tuned on its transition to a superconducting state makes a sensitive thermometer.
March 17, 2014
Press Release
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."
The Dark Sector Lab (DSL)
March 4, 2014
News Feature
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.
February 20, 2014
News Feature
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.
Image - Illustration of black widow pulsar blasting material off companion star
February 10, 2014
News Feature
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.
Photo - Researchers look over the magnetic coils that will impersonate the Earth's magnetic field.
January 14, 2014
News Feature
Scientists studying five years of data from the Fermi Gamma-ray Space Telescope have found the first gamma-ray variable pulsar.
January 10, 2014
News Feature
The distant universe looks a little clearer, thanks to tens of thousands of citizen scientists who classified more than 6 million images over the past three days.
January 8, 2014
Using an entire galaxy as a lens to look at an object in the far distance, researchers are learning more about powerful jets emitted when matter f
December 19, 2013
News Feature
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.
Image - Artist's illustration of a supernova, with a shockwave spreading out from it.
December 6, 2013
A panel met at SLAC National Accelerator Laboratory to look for promising routes to the study of dark matter, dark energy and other phenomena.

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