Particle Astrophysics & Cosmology (PAC)

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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
January 13, 2020
News Feature
Matching up maps of matter and light from the Dark Energy Survey and Fermi Gamma-ray Space Telescope may help astrophysicists understand what causes a faint cosmic gamma-ray glow.
DES-Fermi
January 7, 2020
News Feature
Symmetry
The Large Synoptic Survey Telescope will be named for an influential astronomer who left the field better than she found it.
Vera Rubin
November 6, 2019
News Feature
His work aims to deepen our understanding of dark matter, dark energy and other secrets of the universe.
Photo of Panofsky fellow Daniel Gruen

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