Silicon Valley Astronomy Lectures

Craig Venter & Daniel Cohen suggested that if the 20th century was the century of physics, the 21st century will be the century of biology on our planet.  Jill Tarter believes that their idea will be extended beyond the surface of our world, and that we may soon have the first opportunity to study biology that developed on other worlds.  In this lecture, recorded in 2017, she talks about her v...

By measuring the rapid orbits of the stars near the center of our galaxy, Dr. Andrea Ghez of UCLA and her colleagues have moved the case for a supermassive black hole at the heart of our Milky Way Galaxy from a possibility to a certainty.  She reports on her pioneering observations of stars near our galaxy's center (that orbit the monster black hole) and discusses some of the surprising resul...

After encountering Pluto, the New Horizons spacecraft, for the first time flew by a member of the Kuiper Belt of icy objects beyond Neptune.  This particular object, informally named “Ultimate Thule” (meaning the farthest place beyond the known world,) turned out to be a “contact binary” – two smaller icy worlds stuck together. Dr. Jeff Moore, a planetary scientist at NASA Ames Research Center,  s...

Black holes are one of the most remarkable predictions of Einstein's theory of gravity: so much material is compressed into such a small volume that nothing, not even light, can escape.  In Spring 2019, the world-wide Event Horizon Telescope released the first real picture of gas around a massive black hole and the “shadow” it makes as the gas swirls into the black hole.  Dr. Quataert (Univer...

Dr. Adam Frank (U of Rochester) first discusses the history of our search for extra-terrestrial intelligence (SETI), including the Drake Equation, the Fermi Paradox, and the searches for radio messages from other civilizations that have taken place since 1960.  He then explains how new research and funding is expanding our thinking about the ways we might find evidence of intelligent life among th...

Dr. Brown (whose discovery of dwarf planet Eris led to the reclassification of Pluto) discusses the history of planetary discovery (and demotion), why we think a new, larger Planet 9 is on the verge of being found, and the techniques that we are using to try to find this very faint body lurking in the far reaches of our planetary system.  This was recorded Nov. 11, 2020. 

May 22, 2021,  Dr. Janna Levin (Columbia University's Barnard College) Dr. Levin helps us to understand, and to find delight in, black holes – perhaps the most opaque theoretical construct ever imagined by physicists. She takes us on an exploratory tour of the neighborhood of a black hole, and help us feel the visceral experience of encountering black holes of different masses.  The title of...

Lick Observatory, the first continuously inhabited mountain-top observatory in the world, has been doing ground-breaking research since its opening in 1888.  30 years after Lick Observatory established itself as a leader in astronomical research, the 1918 Spanish Flu pandemic hit the United States.  Research, while hampered by the conditions at the time, continued with the dedicated efforts of som...

Astronomers today understand that the universe is full of a mysterious substance they call “dark matter” (because it doesn’t give off any light or other radiation we can detect.)  Dr. Tom Shutt (of the Stanford Linear Accelerator Center) discusses the motivation behind the multi-decade, world-wide effort to test the idea that dark matter is in the form of particles as small as a neutrino but as he...

Nobel Physics Prize laureate, Dr. John Mather, explains how the early cosmos (whose precise characteristics he helped pin down) became our present-day universe of galaxies, stars, and planets.  Dr. Mather is the Project Scientist for the James Webb Space Telescope (which will be a much larger instrument than the Hubble when it is launched in late 2021).  He also discusses the history of the Webb t...