Show Notes
Presenter is the Project Scientist, Dr. Robert Pappalardo (JPL) May 22, 2024 Jupiter's moon Europa may be a habitable world, containing the “ingredients” necessary for life within its ocean. Data from NASA’s earlier Galileo mission suggest that a global, salty ocean exists beneath the icy surface. Tides have broken that floating ice shell to create impressive ridges, bands, and chaotic terrains. The Europa Clipper mission will explore Europa with a suite of instruments, through multiple clos...
More from Silicon Valley Astronomy Lectures
Oct. 7, 2026 Jessie Christiansen (CalTech) "The Search for Earth 2.0: Why We Think It Exists, & How We’re Going to Find it " For thousands of years, we’ve wondered if the Earth is unique, or if there are other Earths out there. In just the last 30 years, we’ve progressed from merely wondering if planets exist around other stars to knowing that almost every star we see has planets. However, we have yet to discover another planet that might be like Earth – a rocky planet orbitin...
May 20, 2026 Dr, Hakeem Oluseyi (CEO, Astronomical Society of the Pacific) n his new book, Why Do We Exist, Dr. Oluseyi suggests that the story of our existence can be told as a passage through nine interwoven realms—each revealing a new layer of cosmic information. In this public talk, he introduces each of the realms, but then focuses on cosmic connections to the Middle Realm, where we humans live, and to the Realm of Life, where organisms flourish across the vastness of space. He explores ...
Dr. Lindy Elkins-Tanton, Space Sciences Laboratory at the University of California, Berkeley, Apr. 8, 2026. The NASA Psyche mission is on its way to orbit a small but immensely ancient world in our asteroid belt: A metallic object, the first humans will ever have visited. When our solar system was in its infancy, thousands of planetesimals (tiny planet-like objects) formed in less than a million years. Many planetesimals later melted, allowing metal cores to form inside rocky mantles. One of ...
A nontechnical talk by Dr. Bruce Macintosh (University of California Observatories) Mar. 11, 2026 In the past three decades, more than 6000 planets have been discovered orbiting other stars. Advances in technology have allowed a handful of giant planets around other stars to be imaged directly. Dr. Macintosh tells us about the first-ever images of other solar systems — and the technology that has allowed us to discover them, such as the Gemini Planet Imager — as well as the future plane...
A nontechnical talk by Dr. Robert Kirshner, Jan 28, 2026. One hundred years ago, Edwin Hubble showed that the universe is expanding. In the 1990s, astronomers found that the expansion is not slowing down, as expected, but speeding up. This led to a Nobel Prize in Physics (for our speaker's students) and a consensus that we live in a universe that is made up of invisible dark matter, mysterious dark energy, and only a pinch of the atoms we, and everything we can see in the Universe, are made o...