• NASA/Goddard Space Flight Center/SDO
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    This image, which was NASA's photo of the day on Feb. 16, shows magnetic loops on the sun. A series of loops such as this is known as a flux rope, and these lie at the heart of eruptions on the sun known as coronal mass ejections (CMEs). This is the first time scientists were able to discern the timing of a flux rope's formation. (Blended 131 Angstrom and 171 Angstrom images of July 19, 2012 flare and CME.)

  • (AP Photo/ Rajesh Kumar Singh)
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    A Hindu holy man pauses as he returns after taking part in a community feast at the Ashram of Swami Ramanand Das at Sangam, the confluence of the Rivers Ganges and Yamuna during the Maha Kumbh festival, in Allahabad, India, Wednesday, Feb. 20, 2013. Millions of Hindu pilgrims have been attending the Maha Kumbh festival, which is one of the world's largest religious gatherings that lasts 55 days and falls every 12 years. 

  • Michael Steele/Getty Images
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    The Great Britain men's team pursuit squad is on their way to qualification for the final during day one of the UCI Track Cycling World Championships at Minsk Arena on Feb. 20 in Minsk, Belarus.

  • Cmdr_Hadfield/Twitter
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    Canadian astronaut Chris Hadfield tweeted this photo and wrote, "Space Station over Toronto, lovely time lapse photo taken by friend Andrew Yee on 13 Feb. pic.twitter.com/lYWLWttS."

  • NASA image by Jeff Schmaltz, LANCE/EOSDIS MODIS Rapid Response
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    Every year, Arctic sea ice shrinks and grows, reaching its minimum in September and its maximum in February or March. As sea ice nears its maximum, it often begins to form in Canada’s Gulf of St. Lawrence. That's likely what was happening when the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite acquired this natural-color image on February 11, 2013. Accessed February 18, 2013.

  • AP Photo/Altaf Qadri
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    A domesticated elephant walks beside a public bus in New Delhi, India, Feb. 20. There are an estimated 28,000 wild elephants in India, along with thousands of domesticated ones that do everything from performing in shows to carrying heavy loads in the country's big cities.

  • NASA Earth Observatory
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    The Danube River is the largest in the European Union. Where the river reaches the Black Sea, a remarkable delta has formed—the "Everglades" of Europe. This image, acquired on Feb. 5 by NASA's Earth Observing-1 satellite, focuses on the northernmost Chilia lobe. It is the youngest section of the delta—somewhere between 300 to 400 years old—and lies mostly within Ukraine.

  • Jeff J Mitchell/Getty Images
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    Yang Guang feeds on bamboo as he bulks up for the breeding season with partner Tian Tian on Feb. 20 in Edinburgh, Scotland.

  • Cmdr_Hadfield/Twitter
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    Canadian astronaut Chris Hadfield tweeted this shot from the International Space Station on February 19, and wrote, "Tonight's Finale: The truly surreal is when humans imitate nature - Palm Islands and The World, Dubai, at dusk. pic.twitter.com/QM7a8sfC."

  • AstroMarshburn/Twitter
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    Next: Today's 10 Must-See Photos: 2-19-2013

    NASA astronaut Thomas H. Marshburn tweeted this shot from the International Space Station and wrote, "Sandbars along the Ganges reveal it’s past courses. pic.twitter.com/znH5bHAP."