The Early Universe

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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)
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.
December 4, 2013
How is it possible to look at the earliest moments of the universe?
The Early Universe
November 27, 2013
News Feature
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.
KIPAC mosaic
November 25, 2013
In scientific circles, “mock” is not always a four-letter word. To test that they’re interpreting their massive amounts of data correctly, astrophysicists create even more data: “mock” data. And while that may be counterintuitive at first, it actually makes a surprising amount of sense.
October 30, 2013
News Feature
Traces of iron spread smoothly throughout a massive galaxy cluster tell the 10 billion-year-old story of exploding supernovae and fierce outbursts from supermassive black holes sowing heavy elements throughout the early cosmos.
Image: Illustration of some markers of the universe's turbulent youth, such as supernova explosions and active galactic nuclei (Akihiro Ikeshita).
September 3, 2013
News Feature
Word of the official beginning of the Dark Energy Survey (DES) starts a five-year clock on a meticulous mapping of one-eighth of the night sky by the Dark Energy Camera, mounted on the Victor M. Blanco Telescope at the Cerro Tololo Inter-American Observatory.
Photo - From left: Eduardo Rozo, Risa Wechsler and El...
August 22, 2013
News Feature
On June 11, 2008, what was then the Gamma-ray Large Area Space Telescope rode a Delta II rocket into low-Earth orbit. After two months of tests and checks and calibrations, on August 11, 2008, NASA declared GLAST open for business as astrophysics' premier eye on the gamma-ray sky. Five years, a name change, a near miss with a defunct Soviet spy satellite, and countless surprises later, the spacecraft now known as the Fermi Gamma-ray Space Telescope is still going strong, with another five-year mission stretching ahead of it.
Photo - The Fermi Gamma-ray Space Telescope launches June 11, 2008
May 21, 2013
News Feature
Now that it looks like the hunt for the Higgs boson is over, particles of dark matter are at the top of the physics "Most Wanted" list.
KIPAC theorists (l to r) Louis Strigari, Risa Wechsler and Yao-Yuan Mao discussing dark matter velocity distributions. (Credit: Luis Fernandez.)
November 19, 2012
Press Release
Menlo Park, Calif. — Time marches relentlessly forward for you and me; watch a movie in reverse, and you’ll quickly see something is amiss.
Illustration - Big letter "B"s change color to represent transforming B mesons

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