Hosts
Summer Ash
Dr. Heather Berlin, PhD
Dr. Helen Fisher, PhD
Dr. David Grinspoon, PhD
Dustin Growick
Dr. Janna Levin, PhD
Dr. Charles Liu, PhD
Dr. Michael J. Massimino, PhD
Chuck Nice
Bill Nye the Science Guy
Gary O’Reilly
Dr. Carolyn Porco, PhD
Natalia Reagan
Dr. Emily Rice, PhD
Dr. Seth Shostak, PhD
Dr. Natalie Starkey, PhD
Dr. Neil deGrasse Tyson, PhD
Co-Hosts
Maeve Higgins
Matt Kirshen
Leighann Lord
Eugene Mirman
Chuck Nice
Sarah Rose Siskind