Free Public Lectures Online

The 2020 Public Lecture Series is implementing an online-only format.

Each event features a noted scientist who discusses a different cosmic topic. These lectures will be presented with a livestream to YouTube, and questions can be asked in the YouTube chat. The recordings will also be posted on our YouTube channel and accessible from this page. 

Upcoming Online Lectures

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6 Oct 2020
The Nancy Grace Roman Space Telescope

Speakers: Jennifer Wiseman and Julie McEnery (NASA Goddard Space Flight Center) NASA recently announced that its next-generation space telescope, formerly called the Wide Field...

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10 Nov 2020

Speakers: Scott Fleming, Clara Brasseur, and Jennifer Kotler (Space Telescope Science Institute)

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1 Dec 2020
Active Galaxies

Speaker: Mitchell Revalski (Space Telescope Science Institute)

Past Lectures


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Results: 197
1 Sep 2020
Lectures Sailing across the Local Universe with ULLYSES: A Hubble Program to Observe Ultraviolet Light from Young Stars
Speaker: Will Fischer (Space Telescope Science Institute) We've all heard that a picture is worth a thousand words. Astronomers go further and say that a spectrum is worth a thousand pictures....
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4 Aug 2020
Lectures Armchair Astrophysics: Finding Physics Far and Wide
Speaker: Quyen Hart (Space Telescope Science Institute) What do echoes, bubbles, and fireworks have to do with astrophysics? What do highway traffic jams and galaxy spiral arms have in common? Some...
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7 Jul 2020
Lectures 'Oumuamua: A Mysterious Interstellar Interloper
Speaker: Amaya Moro-Martin (Space Telescope Science Institute) During the formation of our solar system, a tremendous number of asteroids, comets, and planetesimals were ejected into interstellar...
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3 Jun 2020
Lectures Rubin's Galaxy: A ‘Gentle Giant’ Spiral Galaxy
Speaker: Dr. Benne Holwerda (University of Louisville) One of the largest spiral galaxies in the known local universe, UGC 2885, was recently nicknamed Rubin’s Galaxy in honor of Dr. Vera Rubin,...
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3 Mar 2020
Lectures Exoplanets: A Search for New Worlds
Speaker: Nestor Espinoza (Space Telescope Science Institute) Is the Solar System we call home special? Three decades of advances in astronomy have revealed that our home planet is only one small dot in...
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4 Feb 2020
Lectures The Crab Nebula and Things that Go Kaboom in the Night
Speaker: Frank Summers (Space Telescope Science Institute) Massive stars do not go gentle into that good night. They rage against the dying of the light in titanic supernova explosions. These stars, more...
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14 Jan 2020
Lectures Cloudy with a Chance of Stars
Speaker: Nimisha Kumari (Space Telescope Science Institute) How do stars form? This simple question has intrigued humankind for centuries, and is one of the most explored topics of contemporary astrophysics....
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3 Dec 2019
Lectures Red and Brown Dwarfs: Understanding our Smallest and Closest (sub)Stellar Neighbors
Speaker: Serge Dieterich (Space Telescope Science Institute) The majority of stars in our galaxy are smaller than our sun and some have diameters as small as Saturn’s. Many small red dwarfs are...
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5 Nov 2019
Lectures Unveiling the Cosmos: Key Inventions Behind the Modern Telescope
Speaker: Sarah Kendrew (European Space Agency/STScI) The astronomical telescope is a relatively recent invention in the ancient science of stargazing. Over the past 400 years, generation after generation...
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1 Oct 2019
Lectures Black Holes and Gravitational Waves
Speaker: Emanuele Berti (Johns Hopkins University) Black holes hold the key to some of the pressing mysteries in modern science. Whether in isolation or in binary systems, they are excellent laboratories...
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3 Sep 2019
Lectures The Astronomer's Toolkit
Speaker: Brandon Lawton (Space Telescope Science Institute) For thousands of years, astronomers have employed increasingly precise angular measures to track the positions of stars in the night sky. The...
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6 Aug 2019
Lectures Tiny Stellar Islands in a Big Old Universe
Speaker: Trisha Ashley (Space Telescope Science Institute) Galaxies are islands of stars, gas, and dark matter, the smallest of which are called dwarf galaxies. Although dwarf galaxies are the most numerous,...
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2 Jul 2019
Lectures Our Colorful Universe: Translating Cosmic Light
Speaker: Joseph DePasquale (Space Telescope Science Institute) Vivid and fantastical images of the cosmos can amaze and astound both scientists and the public alike. Have you ever wondered how the...
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4 Jun 2019
Lectures Recycle Your Used Pulsars: Explaining the Extra Gamma-Radiation from the Central Milky Way
Speaker: Christopher Britt (Space Telescope Science Institute) Gamma rays, the highest energy light in the electromagnetic spectrum, generally arise from extreme events. For over a decade, NASA’s...
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7 May 2019
Lectures The Fiery Fate of Exoplanets
Speaker: Joleen Carlberg (Space Telescope Science Institute) What happens to planets when their stars begin to die? For many planets discovered outside of our Solar System, the answer is a trip into the...
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