The Twelfth Annual Sigma Pi Sigma Research Symposium, organized by our Sigma Pi Sigma officers, was held on November 4^th, 2021, in the Rotunda's Lower West Oval Room with students from the Physics and Astronomy Departments. Prizes were awarded to the following presentations:

Talks:

1^st place: Theo O'Neill, "Mapping the Local Bubble's Magnetic Field in 3D"

2^nd place: Katya Mikhailova, "Optical Cavity Design for Quantum Metrology"

3^rd place: Sydney Roberts, "The Search for Hidden Structures in the Temple of Kukulcán at Chichén Itzá using Cosmic-Ray Muons"

Posters:

1^st place: Sophia Yi, "Atomic-scale Studies on the Dissociation of CO₂ over Single Sn Atoms Dispersed on Au(111)"

2^nd place: Shrinidhi Nadgouda, "Constructing an Orthogonal Basis for Image Reconstruction in MATLAB using Principal Component Analysis"

3^rd place: Darren Upton, "Extraction of α_s using Bjorken Sums"