Particle Astrophysics & Cosmology (PAC)
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Symmetry: A Speed Trap for Dark Matter, Revisited
A NASA rocket experiment could use the Doppler effect to look for signs of dark matter in mysterious X-ray emissions from space.
Symmetry: Another Year Wiser
In honor of Fermilab’s upcoming 50th birthday, Symmetry presents physics birthday cards.
Fermi Satellite Observes Billionth Gamma Ray with LAT Instrument
Sensitive gamma-ray “eye” on NASA’s Fermi space telescope continues to provide unprecedented views of violent phenomena in the cosmos.
Origin of Milky Way’s Hypothetical Dark Matter Signal May Not Be So Dark
An excess of gamma rays at the center of the Milky Way, previously discussed as a sign of dark matter, is likely caused by the superdense remains of ancient stars.
Symmetry: Dark Matter Next Door? (Q&A)
Astrophysicists Eric Charles and Mattia Di Mauro discuss the surprising glow of our neighbor galaxy.
Symmetry: Instrument Finds New Earthly Purpose
Detectors long used to look at the cosmos are now part of X-ray experiments here on Earth.
Symmetry: Physics Love Poems
Advance your romance with science.
Symmetry: LZ Dark Matter Detector on Fast Track
Construction has officially launched for the LZ next-generation dark matter experiment.
Symmetry: Physics Love Poem Challenge
Think you can do better than the Symmetry staff? Send us your poems!
Symmetry: Five Extreme Facts about Neutron Stars
Neutron stars have earned their share of superlatives since their discovery in 1967.
