Astrophysics & Cosmology

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March 31, 2020
News Feature
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The Milky Way’s satellites help reveal link between dark matter halos and galaxy formation
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.
February 24, 2020
News Brief
Radio waves detect particle showers in a block of plastic
A cheap technique could detect neutrinos in polar ice, eventually allowing researchers to expand the energy reach of IceCube without breaking the bank.
Radar echo
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
December 18, 2019
News Feature
A day in the life of a telescope camera assembler
As the massive LSST camera project reaches its culmination, Hannah Pollek is one of the engineers in the clean room each day putting the pieces together.
Hannah Pollek Portrait
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'
October 21, 2019
News Feature
A day in the life of an extreme matter scientist
Chemist Ben Ofori-Okai investigates what happens to matter under extreme conditions at microscopic scales to better understand its behavior at massive scales, such as what happens in the Earth’s core.
Ben Ofori-Okai
October 21, 2019
News Feature
Symmetry: Scientists combine forces to study first light
Scientists are designing a next-generation experiment to map the Big Bang’s relic afterglow.
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

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