Showing results for "High on Life" in Astronomy & Space Science

Everywhere he goes, crowds gather to meet Buzz Aldrin. He's a world-class hero, a larger-than-life figurehead, and the best known of a generation of astronauts whose achievements surged in just a few years from first man in space to first men on the moon. Now he pauses to reflect on and share what he has learned, from the vantage point not only of outer space but also of time: Still a nonstop traveler and impassioned advocate for space exploration, Aldrin will be 86 in 2016.

Does life exist on Mars? The question has captivated humans for centuries, but today it has taken on new urgency. NASA plans to send astronauts to Mars orbit by the 2030s. SpaceX wants to go by 2024, while Mars One wants to land a permanent settlement there in 2032. As we gear up for missions like these, we have a responsibility to think deeply about what kinds of life may already inhabit the planet - and whether we have the right to invite ourselves in.