Theoretical Physics

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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.
October 13, 2020
Symmetry
Rubin Observatory will bring new capabilities to the studies of dark matter and dark energy.
August 4, 2020
News Feature
Observations of dwarf galaxies around the Milky Way have yielded simultaneous constraints on three popular theories of dark matter.
March 31, 2020
News Feature
External
Just like we orbit the sun and the moon orbits us, the Milky Way has satellite galaxies with their own satellites. Drawing from data on those galactic neighbors, a new model suggests the Milky Way should have an additional 100 or so very faint satellite galaxies awaiting discovery.
Dark matter forms into clumps, where galaxies and satellite galaxies form.
July 23, 2019
News Feature
If a particle has no mass, how can it exist?
May 22, 2019
News Feature
The approach could advance our understanding of fundamental forces under extreme conditions with applications from astrophysics to fusion research.
QED extreme
August 7, 2018
News Feature
The event attracted 124 participants and explores the successes and challenges of the theory that describes subatomic particles and fundamental forces.
SSI 2018
February 5, 2018
News Feature
Nearly 200 guests attended a symposium on fundamental physics to celebrate the former deputy director’s numerous scientific contributions, which continue to have a tremendous impact on our understanding of the subatomic world.
Sid Drell Symposium January 2018
November 13, 2017
News Feature
The prestigious award recognizes her seminal contributions to particle physics.
Helen Quinn
October 10, 2017
News Feature
Constellations illustrates the many-worlds interpretation of quantum mechanics—with a love story.

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