Particle Astrophysics & Cosmology (PAC)

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January 19, 2022
News Feature
DESI has already mapped out more galaxies than all previous 3D surveys combined, and it's just getting started.
Mayall Telescope Star Trails
November 3, 2021
News Feature
Managing the unprecedented amount of data that will soon stream from Rubin Observatory means more than buying tons of hard drives. SLAC scientist Richard Dubois explains what will go into Rubin’s U.S. data facility.
A bearded man with glasses poses at a railing inside a building.
October 25, 2021
News Feature
A new analysis of the South Pole-based telescope’s cosmic microwave background observations has all but ruled out several popular models of inflation.
A telescope pokes out from a metal dish.
July 28, 2021
News Feature
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Fulfilling a prediction of Einstein’s theory of General Relativity, researchers report the first-ever recordings of X-ray emissions from the far side of a black hole.
Black Hole
June 3, 2021
News Feature
From the invisible world of elementary particles to the mysteries of the cosmos, recipients of this prestigious award for early career scientists explore nature at every level.
Panofsky fellows
May 17, 2021
News Feature
An international collaboration aims to create a 3D map of the universe, unraveling the mysterious nature of dark energy.
May 12, 2021
News Feature
Rebecca Leane and colleagues showed dark matter could heat planets in our galaxy to incredible temperatures. Here, she explains how that works and how it could pave the way for sensitive new searches for the mysterious substance.
Portrait of Rebecca Leane
November 16, 2020
News Feature
SLAC cosmologists are using multiple images of the same quasars, produced by massive galaxies’ gravitational pull, to calibrate cosmic distances. Their work may help resolve long-standing debates about how quickly the universe is expanding.
Light from a distant quasar bends around a galaxy, creating four images of the quasar.
September 30, 2020
News Feature
Daniel Ratner, head of SLAC’s machine learning initiative, explains the lab’s unique opportunities to advance scientific discovery through machine learning.
Daniel Ratner
June 1, 2020
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Blandford’s major contributions range from energetic jets ripping forth from colossal black holes to cosmic “magnifying” glasses to gravitational waves.
Roger Blandford

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