Riverside Astronomical Society—Outreach, star parties, dark sky site, and you!

RAS Regular Monthly & Board Meetings

Next Meeting: Saturday, June 26th

Our monthly meetings are currently being held virtually via WebEx. To join, make sure you have the WebEx application downloaded and correctly installed on your device (or that you're able to join via a browser), and use the login info provided (it will appear below once it's available).

Next General Meeting: Saturday, June 26th at 6:45PM


Next Monthly Meeting Details


Anna Ho, Department of Astronomy, UC Berkeley Anna Ho, Department of Astronomy, UC Berkeley

Featured Presentation

The Landscape of Relativistic Stellar Explosions

By Anna Ho, UC Berkeley


The fate of a star — how it lives its life, how it dies, and the corpse it leaves behind — depends primarily on its mass. High-mass stars explode as a supernova and leave behind a neutron star or a black hole. In rare cases, a powerful relativistic jet is launched by the newly formed black hole, appearing as a gamma-ray burst (GRB). There have been thousands of GRBs discovered by satellites, but recent discoveries hint at diverse outcomes that are invisible to GRB satellites: jets that are choked inside the star, jets that are directed away from Earth, and jets that have different compositions. Anna has been searching for relativistic explosions using a network of robotic telescopes around the world and in space.

Anna Ho is a Miller Postdoctoral Fellow at UC Berkeley. For her work, she uses a network of robotic telescopes to investigate the deaths (and death omens) of stars. Before coming to California, she grew up in Singapore and London, earned a Bachelor's degree in Physics from MIT, and spent a year on a Fulbright Scholarship in Heidelberg, Germany.



The constellation Draco The constellation Draco

What's Up?!

The Constellation Draco

With Ed Ussery