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Swiss team unveil pioneering solar plane

Round-the-world balloooning pioneer Bertrand Piccard unveiled his solar-powered aircraft in Switzerland on Friday, ready for another trend-setting circumnavigation of the globe powered solely by the sun.

Technology / Energy & Green Tech

created Jun 26, 2009 | popularity 4.7 / 5 (42) | comments 21

Six new planets discovered

(PhysOrg.com) -- An international team, including Oxford University scientists, has discovered six diverse new planets, from 'shrunken-Saturns' to 'bloated hot Jupiters', as well a rare brown dwarf with 60 ...

Space & Earth / Astronomy

created Jun 14, 2010 | popularity 4.8 / 5 (30) | comments 3 | with audio podcast

Turning Planetary Theory Upside Down (w/ Video)

(PhysOrg.com) -- The discovery of nine new transiting exoplanets is announced today at the RAS National Astronomy Meeting. When these new results were combined with earlier observations of transiting exoplanets ...

Space & Earth / Astronomy

created Apr 13, 2010 | popularity 4.7 / 5 (30) | comments 19 | with audio podcast

Highly efficient solar cells could result from quantum dot research

Conventional solar cell efficiency could be increased from the current limit of 30 percent to more than 60 percent, suggests new research on semiconductor nanocrystals, or quantum dots, led by chemist Xiaoyang ...

Nanotechnology / Nanomaterials

created Jun 17, 2010 | popularity 4.5 / 5 (30) | comments 4 | with audio podcast

Discovery of a 'dark state' could increase maximum theoretical efficiency of solar cells from 31 to 44 percent

The efficiency of conventional solar cells could be significantly increased, according to new research on the mechanisms of solar energy conversion led by chemist Xiaoyang Zhu at The University of Texas at Austin.

Physics / Condensed Matter

created Dec 15, 2011 | popularity 4.8 / 5 (23) | comments 12 | with audio podcast

Astronomers find weird, warm spot on an exoplanet

(PhysOrg.com) -- Observations from NASA's Spitzer Space Telescope reveal a distant planet with a warm spot in the wrong place.

Space & Earth / Astronomy

created Oct 19, 2010 | popularity 4.4 / 5 (25) | comments 16 | with audio podcast

Taming thermonuclear plasma with a snowflake

Physicists working on the National Spherical Torus Experiment (NSTX) at the Princeton Plasma Physics Laboratory are now one step closer to solving one of the grand challenges of magnetic fusion research -- ...

Physics / Plasma Physics

created Nov 08, 2010 | popularity 4.8 / 5 (20) | comments 11 | with audio podcast

Hot Electrons Could Double Solar Cell Power Efficiency

Scientists have experimentally verified a theory suggesting that hot electrons could double the output of solar cells. The researchers, from Boston College, have built solar cells that successfully use hot ...

Nanotechnology / Nanophysics

created Dec 18, 2009 | popularity 4.3 / 5 (19) | comments 2 weblog

Early exit for hot Jupiter due to deadly tides

(PhysOrg.com) -- Bad news for planet hunters: most of the "hot Jupiters" that astronomers have been searching for in star clusters were likely destroyed long ago by their stars. In a paper accepted for publication ...

Space & Earth / Astronomy

created Sep 10, 2010 | popularity 4.7 / 5 (14) | comments 1 | with audio podcast

Super-Earth has an atmosphere, but is it steamy or gassy?

In December 2009, astronomers announced the discovery of a super-Earth known as GJ 1214b. At the time, they reported signs that the newfound world likely had a thick, gaseous atmosphere. Now, a team led by ...

Space & Earth / Astronomy

created Dec 01, 2010 | popularity 5 / 5 (13) | comments 2 | with audio podcast

Two more kepler planets confirmed

Hot on the heels of confirming one Kepler planet, the Hobby-Eberly Telescope announces the confirmation of another planet. Another observatory, the Nordic Optical Telescope, confirms its first Kepler planet ...

Space & Earth / Astronomy

created Aug 08, 2011 | popularity 4.6 / 5 (14) | comments 0 | with audio podcast

Three-telescope interferometry allows astrophysicists to observe how black holes are fueled

(Phys.org) -- By combining the light of three powerful infrared telescopes, an international research team has observed the active accretion phase of a supermassive black hole in the center of a galaxy tens ...

Space & Earth / Astronomy

created May 16, 2012 | popularity 4.9 / 5 (13) | comments 1 | with audio podcast

Plasmonic device converts light into electricity

(PhysOrg.com) -- While the most common device for converting light into electricity may be photovoltaic (PV) solar cells, a variety of other devices can perform the same light-to-electricity conversion, such ...

Nanotechnology / Nanophysics

created Nov 09, 2011 | popularity 4.6 / 5 (13) | comments 3 | with audio podcast feature

Exoplanet atmospheres detected from Earth for the first time

(PhysOrg.com) -- Transiting exoplanets are routinely detected when they pass in front of their parent star as viewed from the Earth, which only happens by chance. The transit event causes a small drop in the ...

Space & Earth / Astronomy

created Jan 14, 2009 | popularity 4.5 / 5 (13) | comments 4

Elusive 'hot' electrons captured in ultra-thin solar cells

Boston College researchers have observed the "hot electron" effect in a solar cell for the first time and successfully harvested the elusive charges using ultra-thin solar cells, opening a potential avenue to improved solar ...

Physics / General Physics

created Dec 11, 2009 | popularity 4.5 / 5 (13) | comments 3