Ozone depletion trumps greenhouse gas increase in jet-stream shift
Depletion of Antarctic ozone is a more important factor than increasing greenhouse gases in shifting the Southern Hemisphere jet stream in a southward direction, according to researchers at Penn State.
Generating, sustaining electrical currents with unique properties for information processing closer to reality
Spintronics is a form of signal processing similar to that used in traditional electronics, but it takes advantage of a property of electrons known as spin. Spin is often visualized as an arrow about which ...
NASA's older Mars rover notches another milestone
Opportunity, NASA's other Mars rover, has tooled around the red planet for so long it's easy to forget it's still alive.
Road trip on tap for NASA's Mars rover in new year (Update)
Since captivating the world with its acrobatic landing, the Mars rover Curiosity has fallen into a rhythm: Drive, snap pictures, zap at boulders, scoop up dirt. Repeat.
Evidence for active hollows formation on Mercury
A recent image acquired by NASA's MESSENGER spacecraft shows the interior of Eminescu, a youngish 130-km (80 mile) wide crater just north of Mercury's equator. Eminescu made science headlines last year with MESS ...
Sea Launch rocket lofts Eutelsat satellite
(AP)—Sea Launch AG says it has placed a communication satellite into orbit for global provider Eutelsat.
At last, how many alien civilizations are there?
During the space age, 1961 was a special year: the Russian cosmonaut Yuri Gagarin became the first man to orbit Earth, while the American astronomer Frank Drake developed the now famous Drake Equation. This ...
Size matters for fish in a changing climate
A changing climate could have a drastic impact on fish populations in the tropics, but according to new research it's likely to boost stocks in some cooler waters.
Outside a vacuum: Model predicts movement of charged particles in complex media
Picture two charged particles in a vacuum. Thanks to laws of elementary electrostatics, we can easily calculate the force these particles exert upon one another, and therefore predict their movements.
Metamaterials and transformation optics control light on a microchip
Using a combination of the new tools of metamaterials and transformation optics, engineers at Penn State University have developed designs for miniaturized optical devices that can be used in chip-based optical ...
Cutting Bergmann's Rule down to size
(Phys.org)—Matan Shelomi, a doctoral candidate in entomology at the University of California, Davis, is cutting Bergmann's Rule down to size.
Mars rover Curiosity set to hit the road again (Update)
After playing in the sand, the Curiosity rover is poised to trek across the Martian landscape in search of a rock to drill into, scientists reported Thursday.
USA's ancient hurricane belt and the US-Canada equator
The recent storms that have battered settlements on the east coast of America may have been much more frequent in the region 450 million years ago, according to scientists.