Bill Nye is a scientist, engineer, comedian, and inventor, as well as the New York Times bestselling author of Undeniable: Evolution and the Science of Creation. He holds a BS in Mechanical Engineering from Cornell University, where he studied under Carl Sagan, and worked as an engineer at Boeing on the 747, before creating and hosting his much-loved Emmy award-winning PBS/Discovery Channel show "Bill Nye the Science Guy." He holds six Honorary Doctorate degrees from Lehigh University, Willamette University, Quinnipiac University, Rensselaer Polytechnic Institute, Goucher College, and Johns Hopkins, and visits Cornell regularly as a Professor in his own right.

Corey S. Powell is the former editor in chief of American Scientist and Discover, where he is currently editor at large and continues to write the "Out There" column and blog. He is also a visiting scholar at NYU's SHERP science journalism program, as well as a freelance writer for Popular Science, Smithsonian, Nautilus, and Aeon; his article "The Madness of the Planets" appears in The Best American Science and Nature Writing 2014. He lives in Brooklyn with his wife, two daughters, and a small collection of Permian-era fossils.