News tagged with visible light

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The central region of the Milky Way

(PhysOrg.com) -- The center of our Milky Way galaxy is about 27,000 light-years away in the direction of the constellation of Sagittarius. At the very center of the galaxy lies a black hole whose mass is about ...

Aug 15, 2011
4.7 / 5 (22) 19 | with audio podcast

Nano-LEDs emit full visible spectrum of light

(PhysOrg.com) -- Physicists from Taiwan have designed and fabricated nano-sized light-emitting diodes (LEDs) that emit light spanning the entire visible spectrum. Although the tiny full-color LEDs aren't intended ...

Jun 17, 2011 feature
4.9 / 5 (18) 2 | with audio podcast

WISE mission offers a taste of galaxies to come

(PhysOrg.com) -- An assorted mix of colorful galaxies is being released today by NASA's Wide-field Infrared Survey Explorer mission, or WISE. The nine galaxies are a taste of what's to come. The mission plans ...

May 25, 2011
4.8 / 5 (6) 5

Exploring space

(PhysOrg.com) -- One of the most powerful and ambitious astronomical satellites designed to provide the best view yet of the Universe at far-infrared and sub-millimeter wavelengths is living up to its illustrious ...

May 16, 2011
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Full 3-D invisibility cloak in visible light

Watching things disappear "is an amazing experience," admits Joachim Fischer of the Karlsruhe Institute of Technology in Germany. But making items vanish is not the reason he creates invisibility cloaks. Rather, the magic-like ...

May 01, 2011
4.6 / 5 (17) 3 | with audio podcast