Massive space rocks hurtle past Earth with frightening regularity. Some scientists want to deflect them. Others want to drag one closer.
Are nuclear disasters the new normal?
2011 is shaping up to be a great year for science. Here's what to look forward to
Scientists are building ultra-cold systems that mimic the most extreme edges of the universe. Can these analogues help solve the big bang's mysteries?
The man behind the world's most powerful camera confronts killer viruses, nude sunbathers and the San Diego Padres
One of the biggest mysteries of physics could end with what scientists find 4,850 feet below the Black Hills of South Dakota
Here's hoping this month's release of the Hollywood sea-fighting epic Master and Commander will do justice to those magnificent men and their sailing machines. On these pages, the mightiest ships of then and now.
Longest pi sequence ever calculated 8 times faster than previous record
Worms, planets, extra dimensions: just a few of the things that inspire the most creative young scientists of the year
We're closing in on one of the most important numbers in the universe.
Running is in our DNA, but training for a marathon is a careful mix of muscle, mental, and technological strength.
Swings in temperature are what the MJO does best.
Take a look at a few of cinema's most mind-boggling moments of scientific inaccuracy-plus a few rare films that manage to get things (mostly) right
Obesity is booming, yet there are only two medications approved for long-term weight loss. Why is it so hard to make a diet pill that works? For one thing, evolution hates diets
Facebook Data Science calculates just how connected the world really is.
In the July 1969 issue of Popular Science, a famous rocket scientist narrated the first moon landing.
Western architects have grand plans for helping China solve its expanding environmental crisis. But the world's dirtiest country already has the power to clean up all on its own
The answer was 8
These elite nuclear divers are risking their lives to help save a troubled industry.
A state-by-state breakdown of policies that could change your community.