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Rio 20 years later: Pollution up, forests down
Since world leaders last gathered in Rio de Janeiro to talk about the state of the Earth, temperatures have climbed and disasters have mounted.
Experts say science lacking on 9/11 and cancer
Call it compassionate, even political. But ... scientific? Several experts say there's no hard evidence to support the federal government's ...
Tests show students struggle to explain answers
American children do much better identifying the correct answers to simple scientific tasks than using evidence from their experiments to explain ...
US sues to force return of dinosaur to Mongolia
The fossil of a dinosaur that roamed the earth 70 million years ago should be turned over to the United States by an auction house so that it can be ...
Archaeologist finds oldest rock art in Australia
An archaeologist says he found the oldest piece of rock art in Australia and one of the oldest in the world: an Aboriginal work created 28,000 years ...
Unmanned Air Force space plane lands in Calif.
An unmanned Air Force space plane steered itself to a landing early Saturday at a California military base, capping a 15-month clandestine mission.
Scientists to strap cameras to Hawaiian seals
Hawaiian monk seals need an image makeover. Some fishermen blame the endangered species for stealing their catch. There are unfounded rumors that they ...
SpaceX founder talks Mars with Caltech grads
Fresh off SpaceX's historic return from the International Space Station, company founder Elon Musk said Friday that he would like to see humans settle ...
Mexico cancels controversial Baja resort project
Mexico announced Friday that it is cancelling provisional permits for an enormous, Cancun-sized resort planned for the Baja California shoreline in ...
EPA proposes stricter standards for soot pollution
Risking an election-year backlash from Republicans, the Obama administration is proposing new air quality standards to lower the amount of soot that ...
Report: Don't worry much about quakes and fracking
The controversial practice of hydraulic fracturing to extract natural gas does not pose a high risk for triggering earthquakes large enough to feel, ...
Spanish cave paintings shown as oldest in world
New tests show that crude Spanish cave paintings of a red sphere and handprints are the oldest in the world, so ancient they may not have been by ...
Rock risk forces Yosemite closures
Falling boulders are the single biggest force shaping Yosemite Valley, one of the most popular tourist destinations in the national park system.
NASA chief views history-making SpaceX capsule
Marred by just a few scorch marks from its re-entry to the Earth's atmosphere, the world's first commercial supply spacecraft to visit the ...
10,000 germ species live in and on healthy people
They live on your skin, up your nose, in your gut — enough bacteria, fungi and other microbes that collected together could weigh, amazingly, a few ...
Lake detected near equator of Saturn's Titan
In a surprise find, scientists say they have spotted hints of a methane-rich lake and several ponds near the equator of Saturn's biggest moon.
NASA launches telescope to seek out black holes
NASA on Wednesday launched its newest X-ray space telescope on a mission to shine a light on black holes and other hard-to-see objects lurking in the ...
The dangers of repetitive “heading”
Often seen as a safer, less exciting alternative to full-contact sports, soccer has risks of its own. A recent study suggests that using your head ...