Rate My Professor Alex Filippenko

Filippenko's research centers on observational studies of supernovae, gamma-ray bursts, cosmology, quasars, active galactic nuclei, and black holes at optical, ultraviolet, and near-infrared wavelengths. He was a key member of both teams that discovered the accelerating expansion of the Universe in 1998, driven by dark energy—a breakthrough recognized as Science magazine's top discovery of the year, leading to the 2011 Nobel Prize in Physics for the teams' leaders, the Gruber Cosmology Prize shared in 2007, and the Breakthrough Prize in Fundamental Physics shared in 2015. He developed the 0.76-meter Katzman Automatic Imaging Telescope (KAIT) at Lick Observatory, which has discovered over 1000 nearby supernovae and classified hundreds of objects. With over 1200 research papers garnering more than 218,000 citations (Google Scholar) and an h-index of 197, his influence is profound. Notable books include Understanding the Universe: An Introduction to Astronomy, Black Holes Explained, Skywatching: Seeing and Understanding Cosmic Wonders, and The Cosmos: Astronomy in the New Millennium (textbook, 5th edition). An exceptional educator, he has been voted Berkeley's Best Professor nine times, received the American Astronomical Society Education Prize in 2022, the Carnegie/CASE National Professor of the Year award in 2006, and many other teaching honors. Elected to the National Academy of Sciences in 2009 and the American Academy of Arts and Sciences in 2015, Filippenko has delivered over 2000 public lectures, produced five Great Courses video series, and appeared in more than 120 television documentaries.