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Speaker at 6:30pm: Steve Marten
Title: Seasonal object in the Sky
In addition to our usual fall parade of constellations and the late night return of Orion and friends later this year, Jupiter will be at or near opposition as Venus, Mars and Saturn switch to morning views. What shall we focus on besides great deep-sky objects such as the Triangulum Galaxy (M33)? Answer: Almost half of the year’s meteorite activity (Orionids, Taurids, Leonids, Geminids and Ursids) is only three months of time. Come join us for a Walk Around the Night Sky that features the best viewing objects for this fall. This is an introductory level lecture..
Speaker at 7:30pm: Dimetrios Psaltis, PhD
Title: Hunting for Extra Dimensions with Black Holes in the Universe and in the Large Hadron Collider
You’ve likely heard that astrophysicists believe there’s more to our universe than the three dimensions of space and one of time. How many dimensions are there? No one knows, but astrophysicists are trying to answer that question using all the tricks up their sleeve. Whatever the answer, it could have a ripple effect in our understanding of physics at the most fundamental level. At the October 1st meeting, Dr Dimitrios Psaltis will tell us what can be determined about the extra dimensions through the study of black holes and what the Large Hadron Collider might reveal.
Dr. Psaltis is an Associate Professor of Astronomy and Physics at the University of Arizona. He is a member of the Theoretical Astrophysics Program at the UofA. He was born in Greece and attended Aristotle University of Thessaloniki. He received his Masters and PhD in Astronomy from the University of Illinois, Urbana-Champaign in 1994 and 1997, respectively. His post doctoral work was done at the Harvard-Smithsonian Center for Astrophysics and later at MIT. He has been at the University of Arizona since 2003. He and his wife are divers, having dived all over the world. He also holds a private pilot license.
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