In a wide-ranging interview with PopularScience.com, Aldrin talks about a mission to Mars, 34 years of sobriety and the future of American leadership in space.
Dogs, cats, chimps, and more!
This 10,000-rpm, no-pulse artificial heart doesn't resemble an organic heart--and might be all the better for it
Tyson's book "Space Chronicles: Facing the Ultimate Frontier" is out today
Reflections on the passing of one era, and the dawning of another
As spaceflight is privatized, scientists will pay for space trips alongside affluent adventurers
2011 is shaping up to be a great year for science. Here's what to look forward to
Launch the gallery below, and enjoy our favorite pictures of the year, all in one place
And PopSci was there to watch
More than 50 of the most dangerous, disgusting, humiliating and just plain bad professions
Forget lab coats and beakers: in this gallery of breathtaking images, we celebrate the visually pleasing side of scientific enquiry
Whatâ€™s the most accurate way to forecast the future? Simple: make predictions profitableâ€”just like on the PopSci Predictions Exchange
We'll get a vaccine for addiction, debate the future of nuclear power, use new tech to take on water shortages, and-just maybe-find an extra dimension or two. Happy New Year
In a year when the heroes of space were robotic explorers and plucky capitalists, the future of NASAâ€™s manned program seemed shakier than ever
From fart sniffer to postdoc, the most torturous ways to make a living in science.
Players love the tech, but pro and amateur organizations can hardly keep up with the new materials and radical designs that have rewired and sometimes hot-wired sports.