News tagged with visible light

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A better imager for identifying tumors

Before they excise a tumor, surgeons need to determine exactly where the cancerous cells lie. Now, research published today in The Optical Society's (OSA) journal Optics Letters details a new technique that could give surgeons ...

dateJun 19, 2014 in Optics & Photonics
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The 'Serpent' star-forming cloud hatches new stars

(Phys.org) —Stars that are just beginning to coalesce out of cool swaths of dust and gas are showcased in this image from NASA's Spitzer Space Telescope and the Two Micron All Sky Survey (2MASS). Infrared light has been ...

dateMay 30, 2014 in Astronomy
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Pitch black: Cosmic clumps cast the darkest shadows

(Phys.org) —Astronomers have found cosmic clumps so dark, dense and dusty that they throw the deepest shadows ever recorded. Infrared observations from NASA's Spitzer Space Telescope of these blackest-of-black regions paradoxically ...

dateMay 22, 2014 in Astronomy
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