Particle Astrophysics & Cosmology (PAC)

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Construction of Large Synoptic Survey Telescope to Begin

SLAC is leading the construction of LSST's 3,200-megapixel camera. The telescope will start surveying the entire visible southern sky in 2022.

Despite Extensive Analysis, Fermi Bubbles Defy Explanation

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.

KIPAC Celebrates Second Annual Public Open House

About 550 visitors from all over the Bay Area came to explore a wide range of the institute’s cosmic research topics.

SLAC, Stanford Scientists Play Key Roles in Confirming Cosmic Inflation

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.

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."

The Seven Biggest Questions in Particle Astrophysics and Cosmology

SLAC's Kavli Institute for Particle Astrophysics and Cosmology (KIPAC) recently hosted many of the top scientists in the field to discuss the most important questions to confront in the coming decade.

High-energy Gamma Ray Burst Could Re-shape Astrophysics Theories, SLAC and Stanford Scientists Say

SLAC and Stanford physicists played a key role in monitoring and analyzing the brightest gamma ray burst ever measured, and suggest that its never-before-seen features could call for a rewrite of current theories.

Fermi Sees Record Gamma-ray Burst

A record-setting blast of gamma rays from a dying star in a distant galaxy has wowed astronomers around the world. The eruption, which is classified as a gamma-ray burst, or GRB, and designated GRB 130427A, produced light with the highest energy ever measured from such an event.

Cryogenic Dark Matter Search Adds New Intrigue with Latest Result

Physicists operating an experiment located half a mile underground in Minnesota reported this weekend that they have found possible hints of dark-matter particles.

Panofsky Prize Honors Researchers' Underground Hunt for Dark Matter

The search for dark matter runs deep with physicists Blas Cabrera and Bernard Sadoulet, who have chased this mystery far underground and will be recognized for their work as joint recipients of the 2013 W.K.H. Panofsky Prize in Experimental Particle Physics. The prize is named for SLAC's founding director, Wolfgang "Pief" Panofsky, and awarded by the American Physical Society.

Particle Astrophysics & Cosmology (PAC)

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