Next Meetup

"A song of ice and fire: dynamics of planets hot and cold" at Agnes Scott
- This event is a production of the Department of Physics & Astronomy at Agnes Scott College ( - It is free and open to the public. - RSVPs are not required to attend. - Seating is on a first-come basis. - Doors open at 7:30 pm. - The lecture begins at 8:00. - Refreshments will be served. - Refer to this page ( for directions as well as the notes at the bottom of the description below. - A planetarium show and viewing with the observatory telescopes (weather permitting) will follow the lecture. ______________________ "A song of ice and fire: dynamics of planets hot and cold" at Agnes Scott Gongjie Li, Assistant Professor School of Physics Georgia Institute of Technology The unexpected diversity of planetary systems has posed challenges to our classical understanding of planetary formation. For instance, Jupiter sized planets have been detected with short orbital periods of a few days, misaligned with respect to the spin-axis of their host stars. In this lecture, Georgia Tech physicist Gongjie Li will describe the dynamical interactions between an outer perturber and the inner planet, which naturally leads to the formation of such misaligned hot Jupiters. She will also discuss a similar dynamical process in our outer Solar System, far away from our Sun, which causes the observed clustering of extreme trans-Neptunian objects. These studies can constrain the properties of possible outer planet(s), such as the hypothesized Planet Nine, in our own Solar System. About the speaker Gongjie Li is an assistant professor at the School of Physics at Georgia Tech. She graduated from the California Institute of Technology with a bachelor’s degree in astrophysics and went on to earn her Ph.D. in Astronomy and Astrophysics from Harvard University. She was a Junior Fellow in the Harvard Society of Fellows from July 2015 to December 2017. Her research interests include the dynamics of exoplanets and the interactions between supermassive black holes and their surrounding stars. Dr. Li was awarded both the Hubble Fellowship and the Einstein Fellowship in 2015, which she declined in order to accept the Eric R. Keto Prize for Ph.D. Thesis in Theoretical Astrophysics at Harvard University. From[masked], she was awarded the William F. Milton Award from Harvard University. She came to Georgia Tech in January of this year. ______________________ Parking Handicapped-accessible parking is available adjacent to the observatory. Other visitors are requested to use campus parking lots accessible via E. Dougherty St. and South McDonough St. There is on-street parking along E. Dougherty, or in the parking lot to your right past the Mary Brown Bullock Science Center. Additional parking is available in the West Parking Facility on S. McDonough St. Follow Dougherty to the four-way stop, either turn left and take your first left into the parking lot, or turn right and park in the large parking deck on the left.

The Bradley Observatory of Agnes Scott College

E. Dougherty Street · Decatur, GA

What we're about

If you are excited by science - but not necessarily a science professional - and you live in the Atlanta area, then the Atlanta Science Tavern is the meetup for you.

Our program is centered on a fourth Saturday of the month meeting at Manuel's Tavern, which features a speaker - typically a scientist from a nearby university or research center - who presents his or her work to a smart general audience of science enthusiasts. We also host occasional presentations as part of our ongoing Young Researchers Series, which features talks by graduate students and postdocs.

In addition, we organize social outings and field trips that provide opportunities for our members to experience science as it expresses itself in the community at large. Public lectures at local universities, most prominently the Georgia Tech College of Sciences, are a mainstay of our meetup calendar.

See you at the Tavern!

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