Helium: It gives NYC's Thanksgiving parade a lift

A few uplifting facts about helium, which makes big balloons soar in NYC's Thanksgiving parade

Saturday - 11/29/2014, 06:00am EST

Space station's 3-D printer pops out 1st creation

Space station's 3-D printer pops out 1st creation, a sample replacement part for itself

Saturday - 11/29/2014, 12:42am EST

Doctor behind 'free radical' aging theory dies

Doctor who developed widely accepted theory on aging, now used in disease research, dies

Friday - 11/28/2014, 02:32am EST

Crew docks at International Space Station

Russian, Italian, US astronauts dock at International Space Station after 6-hour trip

Thursday - 11/27/2014, 03:20am EST

9 counties that won't meet new ozone standard

9 counties that won't meet Obama administration's new smog standard without taking new steps

Wednesday - 11/26/2014, 07:10pm EST

Conservationists sue over federal coal program

Conservationists sue to force first broad review of federal coal-leasing program since 1979

Wednesday - 11/26/2014, 05:30pm EST

Deforestation drops 18 percent in Brazil's Amazon

Deforestation drops 18 percent in Brazil's Amazon rain forest, to 2nd lowest level in 25 years

Wednesday - 11/26/2014, 05:20pm EST

AP sources: EPA to propose stricter smog standard

AP sources: After tabling similar proposal, Obama to propose a stricter smog standard

Wednesday - 11/26/2014, 03:50am EST

Search continues at ancient Greek burial mound

Scientists search for more tombs and skeletons in excavation of ancient burial site

Tuesday - 11/25/2014, 03:22pm EST

Ethiopia hopes to set world record for HIV tests

Ethiopia hopes to set world record for number of HIV tests in a day in honor of World AIDS Day

Tuesday - 11/25/2014, 03:00pm EST

Space station rarity: 2 women on long-term crew

Space station rarity: 2 women on long-term crew with launch of Italy's 1st female astronaut

Tuesday - 11/25/2014, 02:54pm EST

Owner of ship that damaged reef to pay $840,000

Ship owner to pay $840,000 in damages for running aground, harming Hawaii coral reef in 2010

Tuesday - 11/25/2014, 02:49pm EST

Bill Weir's new CNN series to begin in 2015

Bill Weir's new series on CNN to explore rate of planetary change

Tuesday - 11/25/2014, 07:20am EST

Merck, Iowa firm sign Ebola vaccine licensing deal

Merck, Iowa's NewLink Genetics sign exclusive licensing deal for Ebola vaccine in early tests

Monday - 11/24/2014, 05:00pm EST

Surrogate sushi: Japan biotech for bluefin tuna

Surrogate sashimi: Japan scientists using biotech tricks to conserve declining bluefin tuna

Sunday - 11/23/2014, 10:46pm EST

Report: Grouse needs 3-mile buffer from drilling

Feds find struggling Western bird needs 3-mile buffer from drilling, impacting energy industry

Sunday - 11/23/2014, 10:42pm EST

Where's the snow? Not in Alaska's largest city

Where's the snow? Alaska's largest city trades conditions with much of the Lower 48

Sunday - 11/23/2014, 10:42pm EST

NOAA: Globe sets 5th hottest-month record of 2014

With 5th record hot month, NOAA says 2014 likely to be globe's hottest year despite US cold

Sunday - 11/23/2014, 10:42pm EST

Researcher who found cause of Lyme disease dies

Burgdorfer, researcher who discovered bacteria that causes Lyme disease, dies in Montana

Sunday - 11/23/2014, 08:42am EST

Crew finds 150-ton boulder likely left by glacier

Construction workers in Washington state find 150-ton boulder that likely was left by glacier

Sunday - 11/23/2014, 07:32am EST
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, December 17, 2014
Washington, DC
Now: 42 °F
Tonight: Clear to partly cloudy and breezy
Hi: 52 °F | Lo: 30 °F
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