Particle Astrophysics & Cosmology (PAC)

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November 16, 2020
News Feature
Gravitational lenses could hold the key to better estimates of the expansion of the universe
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
Q&A: How machine learning helps scientists hunt for particles, wrangle floppy proteins and speed discovery
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
External
Roger Blandford awarded $1.2M Shaw Prize for far-reaching contributions to astrophysics
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
Connecting the dots in the sky could shed new light on dark matter
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
Vera Rubin, giant of astronomy
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
Daniel Gruen awarded 2019 Panofsky Fellowship at SLAC
His work aims to deepen our understanding of dark matter, dark energy and other secrets of the universe.
Photo of Panofsky fellow Daniel Gruen
October 28, 2019
News Feature
DESI points 5,000 robotic ‘eyes’ at the sky to explore dark energy
The Dark Energy Spectroscopic Instrument begins final testing, setting the stage for a 5-year survey that will analyze the light of 35 million galaxies.
DESI 'eyes'
September 30, 2019
News Feature
A day in the life of a cosmic-ray ‘bookkeeper’
Early-career physicist Jonathan LeyVa helps build one of the world’s most sensitive dark matter detectors.
Jonathan LeyVa/SuperCDMS
September 26, 2019
News Feature
SLAC/Stanford are developing a radio that searches for dark matter
An “out there” theory inspired the development of the Dark Matter Radio, a device that could explain the mysterious matter that makes up 85 percent of the mass of our universe.
Dark Matter Radio
July 11, 2019
News Feature
Light dark matter is a thousand times less likely to bump into regular matter than previous astrophysical analyses allowed
A SLAC/Stanford study of the population of satellite galaxies orbiting the Milky Way provides new clues about the particle nature of dark matter.
Dark matter simulation

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