W71E Astronomy/Geosciences (Zoom; OLLI @ U of A)
Zoom | Registration opens 12/16/2025 10:00 AM EST
Our exploration of the Earth, Solar System, and Universe continues. This semester we will explore the Realm of Supernovae. Focus will be on what causes these stellar explosions and how they are detected? The remnants of many Supernovae are beautiful Planetary Nebulae. Other forms of Nebulae: Emission, Reflection and Dark will also be examined. We will continue to feature our Cosmological Toolkit, tools for a greater understanding of astronomy including the Roche Limit, Tidal Lock, Elemental Abundances, the Eddington Limit and Sidereal Time. As always we will discuss on-going discoveries in Astronomy, Planetary Sciences, and Earth Sciences. Information will be conveyed using short videos, awesome photos, understandable/fun graphics, and class discussions. We will have several guest speakers from the University of Arizona’s Astronomy, Planetary Sciences, and Geosciences Departments. Science Fiction Theatre continues, with short clips highlighting a century of Sci Fi movies and TV shows. And of course there will be ‘Geo-feature of the Week’, ‘What’s for Launch?’, and ‘Books of the Week.’ Please join us for this continuing journey of discovery and adventure. Being in an earlier Astronomy/Geosciences class is neither a prerequisite nor necessary to understand and enjoy this class.
Note: Daylight Savings Time begins on March 8, 2026. After that date this class will begin at 4:00 pm EST.
Guy Jette retired from the U.S. Air Force after 37 years working in Research and Development in both the aeronautical and space fields. He holds MBA and MS degrees, and is an Associate Fellow of the American Institute of Aeronautics and Astronautics. He has worked in astronomy outreach for the past ten years as a docent at Kitt Peak National Observatory. He has also been a frequent guest speaker at the University of Hawaii Institute for Astronomy on Maui.
*This registration item is ZOOM-only; there is not an in-person component to this course. It is offered and run by The Osher Lifelong Learning Institute at the University of Arizona.*