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What is the blue hour?
The blue hour - when the sun is some distance below the horizon, when the sky is deep blue and the landscape is suffused with bluish light - is a good time to take photos.
August 30, 2014
Snowfall ahead in a warmer world, says study
An MIT study finds big snowstorms will still occur in the Northern Hemisphere despite global warming.
August 28, 2014
Report: Summer ozone to get much worse in next 35 years
A new report warns of a 70% increase in the number of days with unhealthy summertime ozone levels by the year 2050.
August 28, 2014
Yellowstone supervolcano would cover North America in ash
It's highly unlikely a supervolcano will erupt at Yellowstone National Park. But, says a new study, if one did, volcanic ash would cover North America.
August 27, 2014
Testing a space rover under Alaskan ice
Scientists test a device on an Alaska glacier that could be used to explore an icy moon of Jupiter.
August 26, 2014
Are tornado outbreaks on the rise?
A new study has found that dangerous tornado outbreaks in the U.S. are on the rise.
August 25, 2014
Strong 6.0-magnitude earthquake rocks San Francisco Bay area
Strong earthquake struck San Francisco Bay area early on August 24, 2014. Power outages, moderate damage across region, closed highways, serious injuries, no deaths.
August 24, 2014
A trip down Canada’s Iceberg Alley
It's been a banner year for iceberg sighting in Iceberg Alley, the area off northeastern Newfoundland where the Titanic struck an iceberg and went down in April, 1912.
August 22, 2014
Researchers find life beneath half a mile of Antarctic ice
The discovery of bacteria in a lake under 800 meters of ice suggest the possibility that similar life might exist elsewhere in our solar system.
August 21, 2014
Zombie ant fungus kills its hosts on doorstep of ant colony
A zombie ant fungus must kill its ant host outside the ant colony, in order to to reproduce and transmit its infection, new research shows. But not far outside.
August 21, 2014
