Alan Schaaf

alan schaaf

Alan Schaaf started Imgur.com in 2009 and has grown it into Reddit’s favorite image sharing service and it’s own self-proclaimed community of Imgurians.

Cameron & Tyler Winklevoss

winklevoss brothers

Cameron & Tyler Winklevoss, American entrepreneurs and venture capitalists, answer questions about Gemini their new next generation bitcoin exchange.

NASA’s Real Martians

nasas real martians

NASA Mars experts are here to answer your question about the realism of the movie “The Martian” plus NASA’s journey to Mars!

NASA Mars Scientists

nasa mars scientists

NASA Mars Scientists answer questions about Sep 29’s announcement of confirmed evidence that liquid water flows on present-day Mars.

Transparency Activists

transparency advocates

Transparency activists from organizations across the globe join together on International Right To Know Day to answer questions about government transparency.

Arie Litovsky

arie litovsky

Arie Litovsky works as a developer at Stack Overflow, a collaboratively edited question and answer site for programmers.

Otto Scharmer

otto scharmer

Otto Scharmer, senior lecturer at MIT’s Sloan School, teaches a free online course on social entrepreneurship and collective leadership to 35,000+ people.

International Group of Theoretical Physicists

international group of theoretical physicists

The international group of theoretical physicists answer questions about paradoxes of black holes, hawking radiation, and the mysteries of the Universe.

Event Horizon Telescope Project

event horizon telescrope project

Scientists with the Event Horizon Telescope Project looking to capture images of a black hole answer questions about telescopes, astronomy, and black holes.

Alex Oldhouser

alex oldhouser

Alex Oldhouser, 25 year old podcaster, is slowly going blind, after being diagnosed w/ glaucoma and macular degeneration the day before starting high school.

Charlie Sanders

charlie sanders

Charlie Sanders, a 17 year old who beat Stage 2A Favorable Hodgkin’s Lymphoma, shares his views on how positivity helped him battle and beat cancer.

Emily Sullivan

emily sullivan

Meet Emily Sullivan, the Director of Streetlight, a peer support program for teenagers with chronic and terminal illnesses, the only program of its kind.

Peter Yuen

peter yuen

Peter Yuen works with wildlife and conservation charities, covering rescues and stories of animals at sanctuaries across Asia.

Nick Woodman

Get personal with Nick Woodman, the founder and CEO of GoPro. Woodman is answers questions in a Reddit AMA about his business and the new HERO4 Session.

Steve Huffman

steve huffman

Steve Huffman, co-founder of Reddit, has taken the reigns as CEO, and is excited to be back answering your questions about the future of Reddit.