A recent study shows growth hormones used in beef cattle could be worse for the environment than previously thought. The new research comes from Indiana University.
Synthetic testosterone is used in the majority of U.S. beef cattle to make cows bigger. But when the steroids exit the cows, they can easily be washed into waterways. And once those compounds enter the environment, they can have surprising reactions - like increasing in potency.
The lecture, which caused a stir when tickets sold out less than an hour after going on sale, will focus on the latest scientific discoveries and how they might shape our understanding of the universe.
At a press event Tuesday, Tyson said the American public needs to do a better job of embracing the role and influence of scientific discovery in everyday life.
As director of New York's Hayden Planetarium and one of the premiere science communicators of his time, Tyson has guided millions of people through the wonders of the universe, most recently as host of Cosmos: A Spacetime Odyssey, a reboot of Carl Sagan's 1980 PBS series.
Lisa Dunn and Janice Hunter are teachers at Fort Wayne's Lakeside Middle School who both have a passion for teaching students about STEM concepts and careers. STEM is shorthand for "science, technology, engineering and math."
It's a passion that led them to Purdue University in West Lafayette over the summer, where they were selected to participate in a program called TechFit.