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Dark Lightning: Are Airplane Passengers Exposed to Radiation from Intense Bursts of Gamma-Rays from Thunderclouds?
April 10, 2013 — Scientists have known for almost a decade that thunderstorms are capable of generating brief but powerful bursts of gamma-rays called terrestrial gamma-ray flashes, or TGFs. Because they can ... > full story -
Snowflakes Falling on Cameras: What Snow Looks Like in Midair
April 10, 2013 — University of Utah researchers developed a high-speed camera system that spent the past two winters photographing snowflakes in 3-D as they fell – and they don’t look much like those ... > full story -
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Migraine Triggers Tricky to Pinpoint
April 8, 2013 — A new study has found that it is nearly impossible for patients to determine the true cause of their migraine episodes without undergoing formal ... > full story -
New Live Bi-Ocular Animations of Two Oceans Now Available
April 5, 2013 — NOAA's GOES-13 and GOES-15 weather satellites sit 60 degrees apart in a fixed orbit over the eastern and western U.S., respectively, providing forecasters with a look at the movement of weather ... > full story -
2013 Wintertime Arctic Sea Ice Maximum Fifth Lowest on Record
April 3, 2013 — During the cold and dark of Arctic winter, sea ice refreezes and achieves its maximum extent, usually in late Feb. or early Mar. According to a NASA analysis, this year the annual maximum extent was ... > full story -
Environmental Policies Matter for Growing Megacities
April 3, 2013 — A new study shows clean-air regulations have dramatically reduced acid rain in the United States, Europe, Japan and South Korea over the past 30 years, but the opposite is true in fast-growing East ... > full story -
Thin Clouds Drove Greenland's Record-Breaking 2012 Ice Melt
April 3, 2013 — If the sheet of ice covering Greenland were to melt in its entirety tomorrow, global sea levels would rise by 24 feet. Three million cubic kilometers of ice won't wash into the ocean overnight, but ... > full story -
Rising Temperature Difference Between Hemispheres Could Dramatically Shift Rainfall Patterns in Tropics
April 2, 2013 — One often ignored consequence of global climate change is that the Northern Hemisphere is becoming warmer than the Southern Hemisphere, which could significantly alter tropical precipitation ... > full story -
NASA's SORCE Satellite Marks a Decade in the Sun
April 2, 2013 — NASA's Solar Radiation and Climate Experiment (SORCE) satellite has been providing data on the sun's irradiance for 10 years. SORCE measures electromagnetic radiation produced by the sun and the ... > full story -
Surveying Roads at 100 Km/h
April 2, 2013 — Germany's road network has a hard time dealing with wind and weather, tires and steel. Until now, however, surveying the damage caused to asphalt and concrete was laborious and expensive. A new laser ... > full story
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