Noticeably colder Monday
Octopuses are well-known masters of camouflage and skillful escape artists, but they aren't exactly famous for their social skills.
A rift almost as deep as the Grand Canyon but much longer may be hidden beneath the Antarctic Ice Sheet.
At the bottom of an icy Antarctic lake, a thin, slimy layer of bright green microbes is generating a tiny oasis of oxygen that might give a picture of what Earth looked like before oxygen became common in the atmosphere.
NASA is about to get up close and personal with Earth's corals: The space agency will use airplanes and water instruments to survey coral reefs and capture the most detailed views ever of the planet's corals.
Anyone planning a trip to Shanghai this year will be interested to know that the city has unveiled its plans to battle an escalating air pollution crisis
Sep 6, 2012; 5:00 AM ET Even though the climate may be changing, there are still ways to help reduce greenhouse gases. Valerie Smock has more on how to do it.