No Free Doughnuts, Even In Space: PayPal is announcing a project with SETI, aiming to solve issues around taking regular people — and commerce — into space. Here, an artist's rendering of a space hotel, from the Space Tourism Society. John Spencer/Space Tourism Society hide caption

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An artist's impression of one of the super-Earth's surrounding the star Gliese 667 about 22 light years from Earth. ESO/L. Calçada hide caption

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The famous Ring Nebula is shown here in striking detail, in a composite image made from images from NASA's Hubble Space Telescope and infrared data from telescopes on Earth. NASA, ESA, C.R. Robert O'Dell, G.J. Ferland, W.J. Henney and M. Peimbert hide caption

toggle caption NASA, ESA, C.R. Robert O'Dell, G.J. Ferland, W.J. Henney and M. Peimbert

Another meteor shower, the Geminid, sparkled over the Spanish canary island of Tenerife on Dec. 13, 2012. AFP/AFP/Getty Images hide caption

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Carnegie Lake, Australia, 1999 Carnegie Lake in Western Australia fills with water only during periods of significant rainfall. In dry years, it is reduced to a muddy marsh. Flooded areas appear dark blue or black, vegetation appears in shades of dark and light green, and sands, soils and minerals appear in a variety of colors. NASA hide caption

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An image from Iran's state-controlled Press TV showing the monkey that was reportedly sent into space today strapped into its seat. Press TV hide caption

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