These are today's best ideas
By Eric Sofge in Popular Science
By Amanda Ripley in the Atlantic
By the European Space Agency
By Liz Stinson in Wired
By David Schultz in Science
The Aspen Institute is an educational and policy studies organization based in Washington, D.C.
TIME Ideas hosts the world's leading voices, providing commentary and expertise on the most compelling events in news, society, and culture. We welcome outside contributions. To submit a piece, email firstname.lastname@example.org.