Martin Xuereb, the director of Migrant Offshore Aid Station (MOAS), a search and rescue charity that specializes in saving lives at sea using drones.
Michael Dorn, best known for his role as the Klingon Worf from Star Trek, answers your biggest Star Trek questions and more in a Reddit AMA.
David Grimm, author of Citizen Canine: Our Evolving Relationship with Cats and Dogs, answers your questions about cats, dogs, and his book release.
Kevin Sacca, a scientist who utilizes multispectral imaging to recover and preserve information from old documents, answers questions about his work.
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 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, 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, 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, best selling author of The 4-Hour Workweek, angel investor, and self-proclaimed human guinea pig, does a Reddit AMA on April 29, 2015.
Professor, economist, and author Dr. David Zetland answers questions about California’s water shortage in a Reddit AMA on April 9, 2015.
A volunteer wildlife carer in Australia who runs a licensed shelter that takes in all sorts of animals does a Reddit AMA with her son on April 5, 2015.
Jameel Jaffer, Jimmy Wales, and Lila Tretikov, are suing the NSA over its mass surveillance. They did a Reddit Ask Me Anything on Mar 20, 2015.
Video game designer/programmer, best known for lead design on Civilization 4, and founder of Mohawk Games, does a Reddit Ask Me Anything on Mar 18, 2015.
Inventor of the World Wide Web, director of the W3C, and founder of WebFoundation.org does a Reddit Ask Me Anything on Mar 10, 2015.
Members from various Net Neutrality Advocacy organizations do a Reddit Ask Me Anything on Feb 28 2015.