I'm excited about the last lecture of #PHYS1303 today, "Light and the Dark Cosmos"! By the way, non-#PHYS1303 students and @SMU colleagues are welcome to attend (FOSC 123, 09:30), but remember this is a class: seats and Q&A prioritized for students in my class. https://twitter.com/drsekula/status/1068149820391604225/photo/1 https://chirp.cooleysekula.net/attachment/53001