Grab your camera and binoculars: There's rarely been a better time to go whale-watching off the California coast.
After driving all around Mars with four rovers, NASA wants to look deep into the guts of the red planet.
Dave Weishampel, paleontologist at Johns Hopkins University
Too hot? Don't sweat it, microwave it.
For one family, an exotic summer getaway means living on Mars.
Amateur cave explorers have found a new family of spiders in the Siskiyou Mountains of Southern Oregon, and scientists have dubbed it Trogloraptor _ Latin for cave robber _ for their fearsome front claws.
Sharks are going to hunt down you and your family and won't rest until they explode. At least, that's what the 1975 movie "Jaws" would have you believe.
Unlike the nearby ocean coasts, the Chesapeake Bay is not a hotbed for shark sport fishing, largely due to the low numbers of sharks that can exist in the water. Bull sharks are among the only species that can withstand salinity levels that low.
In a surprising turnaround, the amount of carbon dioxide being released into the atmosphere in the U.S. has fallen dramatically to its lowest level in 20 years, and government officials say the biggest reason is that cheap and plentiful natural gas has led many power plant operators to switch from dirtier-burning coal.
With persistent heat bearing down on the D.C. area this summer, the last thing on anyone's mind is a snowstorm. But that's what one weather service is now warning about.
Radiation that leaked from the Fukushima nuclear plant following last year's tsunami caused mutations in some butterflies _ including dented eyes and stunted wings _ though humans seem relatively unaffected, researchers say.
Don't get too comfortable swimming in that cool, refreshing river. It might not be the ocean, but that doesn't mean sharks aren't lurking beneath the surface.
Russia's space chief says the head of the country's leading rocket manufacturer has stepped down after a failed launch.
Researchers say increasing amounts of underwater noise, largely from shipping traffic, are enveloping rare right whales in "acoustic smog" that makes it harder for them to communicate.
An unmanned experimental aircraft failed during an attempt to fly at six times the speed of sound in the latest setback for hypersonic flight.
Scientists have found a cosmic supermom. It's a galaxy that gives births to more stars in a day than ours does in a year.
Illegal logging has practically been eliminated in the western Mexico wintering grounds of the monarch butterfly, according to a research report released Wednesday, and Mexican officials now hope to use the successful program of anti-logging patrols and payments to rural residents to solve other forestry conflicts throughout the country.
The blue iguana has lived on the rocky shores of Grand Cayman for at least a couple of million years, preening like a miniature turquoise dragon as it soaked in the sun or sheltered inside crevices. Yet having survived everything from tropical hurricanes to ice ages, it was driven to near-extinction by dogs, cats and cars.
India plans to send a spacecraft to Mars next year on a scientific mission critics say shows the governing party's skewed priorities when people lack electricity and safe drinking water.
These aren't your typical loos. One uses microwave energy to transform human waste into electricity. Another captures urine and uses it for flushing. And still another turns excrement into charcoal.