Each fall millions of monarch butterflies from across the eastern United States begin a southward migration in order to escape the frigid temperatures of their northern boundaries, traveling up to 2,000 miles to an overwintering ...
Plants & Animals
Feb 21, 2013
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(Phys.org)—Grade-school science teachers sometimes hand out "mystery boxes" containing ramps, barriers and a loose marble. By rotating the boxes and feeling the marble hang up or drop, the students try to deduce what's ...
Astronomy
Dec 27, 2012
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When lightning strikes from a towering cumulonimbus cloud down to the ground, the electrical discharge can perturb the atmosphere's electric field, potentially triggering a second event-sprite discharge. This more elusive ...
Earth Sciences
Dec 18, 2012
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Along with pollutants from Asia, transpacific dust plumes deliver vast quantities of microbes to North America, according to a manuscript published online ahead of print in the journal Applied and Environmental Microbiology.
Cell & Microbiology
Dec 17, 2012
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(Phys.org)—Bar-headed geese are star fliers of the bird world. As well as being striking looking creatures, they have become famous for making incredible annual migrations over the world's highest mountain peaks, the Himalayas. ...
Plants & Animals
Nov 1, 2012
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Daredevil Felix Baumgartner's record-breaking jump raises hopes that pilots and even astronauts can be saved from accidents in the stratosphere, experts said on Monday.
Space Exploration
Oct 15, 2012
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An Austrian daredevil is hoping to make an unprecedented leap from the edge of space Tuesday, setting records as he breaks the speed of sound in freefall in the skies above the US state of New Mexico.
Space Exploration
Oct 8, 2012
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Currently global military aviation relies on a key enabler – aerial refueling. Fighters, bombers, reconnaissance and transport aircraft use "flying gas stations" to go the extra mile. Increasingly, UAVs are conducting combat ...
Engineering
Oct 8, 2012
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Will future conservation policies have to take account of the genetic diversity within each species ? A large-scale study into plants found at high altitude throughout the Alps and the Carpathians, has enabled an international ...
Ecology
Oct 8, 2012
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Over the next few weeks, an ER-2 high altitude research aircraft operating out of NASA's Wallops Flight Facility in Wallops Island, Va., will take part in the development of two future satellite instruments. The aircraft ...
Earth Sciences
Sep 18, 2012
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