Virginia Trimble is a professor of physics and astronomy at the University of California, Irvine. She specializes in the history of science, including the history of human understanding of the evolution of galaxies.

Neil J. Cornish is an associate professor of physics at Montana State University in Bozeman. His is an expert on early universe cosmology. His research focuses primarily on Gravitational Wave Astronomy–observing gravitational ways to study different features of the universe.

Gregory Bothun is a physics professor at the University of Oregon in Eugene and author of Cosmology: Mankind’s Grand Investigation.

Yun Wang is an associate professor of physics and astronomy at the University of Oklahoma in Norman.

Ina Sarcevic is a physics professor at the University of Arizona in Tucson and author of The Edge of Infinity. Read an article she wrote on the fundamental nature of matter.

Andrew J.S. Hamilton is professor of astrophysicial and planetary sciences at the University of Colorado in Boulder. He teaches courses on cosmology, astrophysics, and astronomy and is an expert on black holes.

Barbara Sue Ryden is an associate professor of astronomy at Ohio State University in Columbus, author of Introduction to Cosmology and co-author of Basic Astrophysics (2008).

Christopher S. Kochanek is an astronomy professor and Ohio Eminent Scholar in Observational Cosmology at Ohio State University in Columbus. He is an expert in cosmology.

Marco Cavaglià is assistant professor of physics and astronomy at the University of Mississippi in Oxford. His research interests include cosmology, string and M-theory cosmology, and quantum cosmology.