TOUR LECTURERS
Alex Filippenko
Dr. Alex Filippenko, Distinguished Professor of Astronomy at UC Berkeley, is well known for his ability to make complex ideas accessible and entertaining. Winner of the most prestigious teaching awards at UC Berkeley and voted the “Best Professor” on campus a record 9 times, he was named the National Professor of the Year in 2006. In 2022, the American Astronomical Society awarded him its Education Prize. He has produced 5 astronomy video series with The Great Courses, coauthored an award-winning astronomy textbook, and appears in more than 120 TV documentaries.
An elected member of both the National Academy of Sciences and the American Academy of Arts and Sciences, Alex is one of the world’s most highly cited astronomers. His primary areas of research, in which he is a leading authority, are exploding stars, black holes, gamma-ray bursts, active galaxies, and the expansion of the Universe. He is the recipient of numerous prizes for his scientific research, most recently the 2026 Gruber Cosmology Prize, and was the only person to have been a member of both teams that revealed the accelerating expansion of the Universe, propelled by mysterious “dark energy.” This discovery was honored with the 2011 Nobel Prize in Physics to the teams’ leaders and the 2015 Breakthrough Prize in Fundamental Physics to all team members. He was one of only two recipients of Caltech’s 2017 Distinguished Alumni Award.
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Travel Resources
Our Tour Lecturers
Meet the enrichment lecturers who accompany many of our tours and offer fascinating educational details to take your vacation to the next level.

