Joe Gebbia, the co-founder of Airbnb, bet his whole company on the belief that people can trust each other enough to stay in one another's homes. How did he overcome the stranger-danger bias? Through good design. Now, 123 million hosted...

Howcast - Learn about opportunities to volunteer your skills in a foreign country. Sponsors include government agencies, charitable and religious non-profit organizations, and university programs.

Joe Acaba, U.S. astronaut, talks about his time in the Marine Corps and Peace Corps, his previous missions to space, and his background as a high school and middle school educator. HWHAP Episode 10.

When floods, droughts, and other natural disasters hit isolated and poor regions of the world, it can have devastating impacts on the local price of food. NASA Goddard research scientist Molly Brown is using satellite data to...

From the archives: Michael Paine (Gaining Ground Farm) did not come from a farming background nor any prior agriculture experience when he decided to go into farming. Learning what tools to buy and how to actually go about growing food...

Explore the career of Mae Jemison, the first African American female astronaut.

A conversation with Adam Moreno, a postdoctoral fellow working with the NASA Earth Exchange at NASA’s Ames Research Center in Silicon Valley.