Lisanti Group

The fact that galaxies rotate faster than expected is a strong indicator that we only see a small fraction of all the matter that exists—the additional mass comes from “dark matter.’’

[Credit: NASA/JPL-Caltech]

The large-scale structure of galaxies across the Universe teaches us about the properties of dark matter.

[Image: 2MASS Redshift Survey]

The properties of dark matter can affect the dynamics of galaxies like our own, which can be tested with astrophysical observatories such as Gaia.

[Image: ESA/Gaia/DPAC; CC BY-SA 3.0 IGO]

Dark matter can affect the observable properties of small dwarf galaxies that are colliding with the Milky Way.

[Credit: NASA/JPL-Caltech/R. Hurt (SSC/Caltech)]

Signals of dark matter from annihilations at the centers of galaxies may be hiding in high-energy gamma-rays.

[Image: Fermi All-Sky Map]

Simulations of dark matter help us understand its astrophysical distribution in the Milky Way and beyond.

[Image: Via Lactea Simulation]

Dark matter may be produced at the Large Hadron Collider and other accelerator experiments.

[Image: CERN]

Dark matter signals in experiments can be so weak that they require incredibly sensitive detectors.