They just linger in a thick layer on the forest floor.
But, as with many nuclear-disaster health studies, the findings, and what they mean, are controversial.
The effects of Chernobyl are still being felt 28 years later
Behind the scenes in the race to develop a military vehicle that can drive itself.
Stories from the coolest day jobs in the world.
These elite nuclear divers are risking their lives to help save a troubled industry.
Are nuclear disasters the new normal?
Precariously balanced rocks: a different kind of PBR
Including a map of brain cancer, a closeup of a sea urchin's tooth, and more from the 2012 International Science & Engineering Visualization Challenge
It exploded from a tropical storm to a category five in just 27 hours.
Researchers created a series of interactive maps that allow users to see AIDS data down to the county level--and see how that compares to race, health, and wealth.
The smoke will likely impact a few fancier grapes.
Cows conform to electric fields, insects decrease with increasing radiation
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
Researchers have created a unique atlas of meaning
At least 38 confirmed dead
Not your rainy afternoon trip to the science museum
The most promising new treatment for severe depression isn't a pill. It's a permanent implant that shocks the brain. Is this what joy looks like?
If a few very smart neuroscientists are right, with enough number crunching and a powerful brain scanner, science can pluck pictures—and maybe one day even thoughts— directly from your brain
3:18 p.m.: 8.5 million homes are without power. That represents 7 percent of the U.S. population.