Artist's impression of the SS 433 system, depicting the large-scale jets (blue) and the surrounding Manatee Nebula (red). The jets are initially observable only for a short dis-tance from the ...

The Perseus Cluster is a massive galaxy cluster located in the constellation Perseus. It is one of the largest structures in ...

High-energy shock waves driven by solar flares and coronal mass ejections of plasma from the sun erupt throughout the solar system, unleashing magnetic space storms that can damage satellites, disrupt ...

Researchers have made a record-breaking astrophysical discovery while simultaneously uncovering a possible explanation for the rare and extreme astrophysical event known as long-period radio ...

Neutrino physics lies at the heart of modern astrophysics, offering unique insights into the mechanisms powering some of the Universe’s most energetic events. These nearly massless particles, only ...

PASADENA, Calif.–Applied physicists at the California Institute of Technology have devised a plasma experiment that shows how huge long, thin jets of material shoot out from exotic astrophysical ...

The analysis of astrophysical plasmas is vital in the quest to learn about some of the Universe's most powerful and mysterious objects and events such as stellar coronae and winds, cataclysmic ...

Every gift to the Department of Astrophysical and Planetary Sciences (APS), Fiske Planetarium and Sommers-Bausch Observatory (SBO) makes a difference. Your donation helps our students succeed, opens ...

Scientists are steadily ruling out habitable conditions on the seven planets of the star Trappist-1. On one of the worlds, a nitrogen gas-rich veil remains a possibility. By Robin George Andrews ...

In the 2025-2026 academic year, the Department of Astrophysical and Planetary Sciences is conducting two searches for new faculty: one for a tenure-track position in any area of astrophysical and ...