News | The Division of Physics, Mathematics and Astronomy

01/07/2025

Palomar Observatory Produces New and Improved "Rainbows" for Astronomers

Whitney Clavin

The 200-inch Hale Telescope has been upgraded with a state-of-the-art spectrograph

12/17/2024

2024 Year in Review

Caltech News

As 2024 draws to a close, we look back at some of the Caltech-led discoveries and innovations from throughout the past year.

12/04/2024

Zwicky Transient Facility Leads to Classification of 10,000 Supernovae

Whitney Clavin

The Palomar Observatory instrument is a game changer in the hunt for exploding stars.

07/24/2024

Dark Matter Flies Ahead of Normal Matter in Mega Galaxy Cluster Collision

Whitney Clavin

The research provides a unique look at how this matter decoupling proceeds.

Artwork of a dark matter flying ahead of normal matter in galaxy cluster collision.

07/02/2024

Caltech's Submillimeter Observatory Has Been Removed from Maunakea

The final components of the Caltech Submillimeter Observatory (CSO) have been removed from a valley atop Maunakea in Hawai‘i, and the land at the site has been restored.

04/08/2024

Unusually Lightweight Black Hole Candidate Spotted by LIGO

LIGO has detected a candidate black hole with a mass that falls within a so-called mass gap between the heaviest known neutron stars and the lightest black holes.