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Department of Astronomy: Public Lecture & Stargazing

Friday, April 19, 2013 - 8:00pm - 10:00pm
Columbia University Morningside Campus Pupin Hall: Follow signs posted in the lobby.
Every other Friday, the Astronomy Department at Columbia University sponsors public outreach. Attendees get access to astronomical information through timely lectures by members of our department aimed at a public audience. After the thirty-minute lecture, if the weather is clear, the public can proceed to the roof of Pupin Hall and be guided by volunteers in stargazing and observing through the telescopes of Rutherfurd Observatory. A slide show and discussion with an astronomer about various astronomical images happens if the weather is cloudy. "Extragalactic FM: The Beautiful Universe Only Our Radios Can Hear" by Columbia graduate student, Destry Saul. Abstract: Our universe is a bright and noisy place. Everywhere you turn there is a galaxy or a star or a planet. Most of the stunning astronomical pictures you've seen are made with telescopes that are basically superpowered digital cameras. But with very different telescopes, we can make beautiful images of a hidden dimension of our universe using radio waves. Instead of pinpoint stars, we see complex webs of gas and dust. Instead of empty space, we see huge plumes of gas being shot out of galaxies. I will discuss my favorite radio images and the telescopes and people that made them.