News tagged with electromagnetic spectrum

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Explosive origins for cosmic dust

(Phys.org)—The European Space Agency's Herschel Space Observatory has produced an intricate view of the remains of a star that died in a stellar explosion a millennium ago. This new view provides further ...

Dec 18, 2012 4.7 / 5 (3) 1 | with audio podcast

Hubble traps galactic fireflies

(Phys.org)—Luminous galaxies glow like fireflies on a dark night in this image snapped by the NASA/ESA Hubble Space Telescope. The upper central galaxy in this image is a gigantic elliptical galaxy designated ...

Nov 18, 2012 5 / 5 (6) 7 | with audio podcast

Atmospheric aerosol climate caution

Carbon dioxide is not the only problem we must address if we are to understand and solve the problem of climate change. According to research published this month in the International Journal of Global Warming, we as yet ...

Oct 01, 2012 4.3 / 5 (3) 2

New way to generate terahertz radiation

(Phys.org) -- Cornell researchers have developed a new method of generating terahertz signals on an inexpensive silicon chip, offering possible applications in medical imaging, security scanning and wireless ...

Jul 11, 2012 4.9 / 5 (12) 4 | with audio podcast