Picture of the Day: An Interstellar Cloud From Our Own Galaxy

By Rebecca J. Rosen

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A mere 1,000 light years away, is Barnard 3, a region where new stars are being born. In the above image, taken by NASA's Wide-field Infrared Survey Explorer (WISE), the colors represent different wavelengths of infrared light. Green and red show light from 12 and 22 microns, respectively, a wavelength mostly emitted by dust similar smog found here on Earth. Blue and cyan come from light emitted by stars, at wavelengths of 3.4 and 4.6 microns. The nebula is located between the constellations Perseus and Taurus in the night sky.

Below, recent Pictures of the Day:

Image: NASA.

This article available online at:

http://www.theatlantic.com/technology/archive/2011/12/picture-of-the-day-an-interstellar-cloud-from-our-own-galaxy/250535/