Science

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Comet ISON photographed via a telescope on November 8, 2013. Photo by Adam Block/Mount Lemmon SkyCenter/University of Arizona While Americans cook their Thanksgiving turkeys on Thursday, a tiny comet called ISON will pass 684,000 miles above the surface…

.embed-container { position: relative; padding-bottom: 2.25%; padding-top: 30px; height: 0; overflow: hidden; max-width: 100%; height: auto; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } Animators at NASA's Goddard Space…

Rendering of the Earth's magnetic field. Credit: ESA/ATG Medialab Three European satellites launched Friday on a mission to study why the magnetic field surrounding Earth appears to be weakening. The four-year study by the European Space Agency will…