A pair of researchers with ELTE Eötvös Loránd University in Hungary has run computer simulations that suggest that tales of Vikings using a sunstone to navigate in cloudy weather might be true. In their paper published ...
(PhysOrg.com) -- In the near future, a solar power satellite may be supplying electricity to 250,000 homes around Fresno County, California. Unlike ground-based solar arrays, satellites would be unaffected by cloudy weather ...
Access to clean water is being strained as the human population increases and contamination impacts freshwater sources. Devices currently in development that clean up dirty water using sunlight can only produce up to a few ...
Materials Science
Feb 8, 2023
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A meteor that caused an earthshaking boom over suburban Pittsburgh on New Year's Day exploded in the atmosphere with an energy blast equivalent to an estimated 30 tons (27,216 kilograms) of TNT, officials said.
Space Exploration
Jan 4, 2022
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1043
People in North and South America, a large part of Europe and Africa may get a glimpse of a total lunar eclipse overnight from January 20 to 21, the last such event until 2022.
Space Exploration
Jan 14, 2019
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505
Ancient records tell us that the intrepid Viking seafarers who discovered Iceland, Greenland and eventually North America navigated using landmarks, birds and whales, and little else. There's little doubt that Viking sailors ...
Archaeology
Feb 1, 2016
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197
Sky-gazers looked up in awe Friday as the moon blocked the sun in a total solar eclipse that momentarily darkened a slice of northern Europe.
Space Exploration
Mar 20, 2015
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38
(Phys.org)—New movies of the transit of Venus on 6 June 2012, viewed from two different locations on Earth, clearly show the parallax effects that have made Venus transits so important historically. The results were presented ...
Space Exploration
Oct 1, 2012
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0
A total solar eclipse drew an 11,000-kilometer (6,800-mile) arc over the Pacific, plunging remote isles into darkness in a heavenly display climaxing on mysterious Easter Island.
Space Exploration
Jul 11, 2010
7
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(AP) -- NASA tried for hours Tuesday to launch its newest rocket for a shakedown flight, but clouds and high wind kept it stuck on the pad.
Space Exploration
Oct 27, 2009
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