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.

NASA’s Real Martians

NASA’s 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 Activists

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.