Yitang Zhang has been lecturing in the Department of Mathematics at UNH for the past decade. And for the past three years, in between lesson plans and lectures, he’s been trying to solve one of the math world’s most vexing mysteries: the twin prime conjecture. Two weeks ago, his hard work paid off. Here to discuss the proof and what it might mean for us is Jordan Ellenberg, a professor of mathematics at the University of Wisconsin. He wrote about professor Zhang’s meteoric rise to math celebrity for slate.com.