A warming planet means less ice coverage of the Arctic Sea, leaving the bears with less time and less ice for hunting seals.
Researchers are trying to mimic the growing conditions expected to arise decades in the future.
In this artist concept provided by NASA, the MAVEN spacecraft approaches Mars on a mission to study its upper atmosphere. When it arrives on Sunday Sept. 21, 2014, MAVEN's 442 million mile journey from Earth will culminate with a dramatic engine burn, pulling the spacecraft into an elliptica…
FILE - In this Friday, Sept. 27, 2013 file photo, technicians work on NASA’s next Mars-bound spacecraft, the Mars Atmosphere and Volatile Evolution (MAVEN), at the Kennedy Space Center in Cape Canaveral, Fla. NASA’s Maven spacecraft will reach the red planet in September 2014 following a 10-…
FILE - In this Nov. 18, 2013 file photo, NASA's Maven, short for Mars Atmosphere and Volatile Evolution, with a capital "N'' in EvolutioN, atop a United Launch Alliance Atlas 5 rocket, lifts off from Cape Canaveral Air Force Station in Cape Canaveral, Fla. NASA’s Maven spacecraft will reach …
CAPE CANAVERAL, Fla. — NASA’s Maven spacecraft arrived at Mars late Sunday after a 442 million-mile journey that began nearly a year ago.
Global emissions of greenhouse gases jumped 2.3 percent in 2013 to record levels, scientists reported Sunday, in the latest indication that the world remains far off track in its efforts to control global warming.
WASHINGTON — Spurred chiefly by China, the United States and India, the world spewed far more carbon pollution into the air last year than ever before, scientists announced Sunday as world leaders gather to discuss how to reduce heat-trapping gases.
You might not find a hotel room in February in Tucson, but you can find a gem of a deal.
Discoveries by NASA’s Curiosity rover are giving scientists a picture of Mars that looks increasingly complex, with small bits of water spread around the surface and an interior that could have been more geologically mature than experts had thought.