Kevin Sacca

Kevin Sacca

Kevin Sacca, a scientist who utilizes multispectral imaging to recover and preserve information from old documents, answers questions about his work.

Garrett Ingoglia

Garrett Ingoglia

Garrett Ingoglia, VP of Emergency Response with AmeriCares who oversees responses to earthquakes, floods, and hurricanes, does a Reddit AMA on May 29, 2015.

Retired NASA Engineer

Retired NASA Engineer

Retired NASA Engineer from 1954 until 1988 who witnessed firsthand the race to space, landing our men on the moon and more, does a Reddit AMA on May 26, 2015.

Bill Nye & Jason Davis

Bill Nye & Jason Davis

Bill Nye, CEO of The Planetary Society, joined by reporter Jason Davis. for a Reddit AMA on May 12, 2015 about test-launching a solar sailing spacecraft.

Mark Ruffalo

Mark Ruffalo

Mark Ruffalo, American actor, best known as Dr. Bruce Banner in The Avengers movies with Scott Smith, chief scientist from Water Defense do a Reddit AMA.

Tim Ferriss

Tim Ferriss

Tim Ferriss, best selling author of The 4-Hour Workweek, angel investor, and self-proclaimed human guinea pig, does a Reddit AMA on April 29, 2015.