NASA

Reuters/NASA/STScI
Oct. 11, 2012. An optical image of NGC 6543 from the first systematic survey of such objects in the solar neighbourhood made with NASA's Chandra X-ray Observatory. A planetary nebula is a phase of stellar evolution that the sun should experience several billion years from now, when it expands to become a red giant and then sheds most of its outer layers, leaving behind a hot core that contracts to form a dense white dwarf star.
Pictures of the Week: October 5 —12 - LightBox http://lightbox.time.com/2012/10/12/pictures-of-the-week-october-5-12/#58

NASA astronaut Eugene A. Cernan makes a short checkout of the lunar rover during the early part of the first Apollo 17 extravehicular activity at the Taurus-Littrow landing site in this NASA handout picture taken forty years ago today, December 11, 1972, and released December 11, 2012.
Mars Rover - Latest news, videos, and information- NBCNews.com http://www.msnbc.msn.com/id/33102980/?q=Mars%20Rover

This image taken by the Hubble Space Telescope shows previously unseen early galaxies, including the oldest one at 13.3 billion years old. Launched in 1990, Hubble has peered deep in time to reveal distant and old galaxies. (NASA)
Pictures of the Week: 12.09 – 12.15 2012 | CLIK/HEAR | Multimedia, photography, video showcase of The Palm Beach Post http://clikhear.palmbeachpost.com/2012/potw/pictures-of-the-week-12-09-12-15-2012/

Saturn 土星

NASA's Cassini spacecraft has delivered a glorious view of Saturn, taken while the spacecraft was in Saturn's shadow.(NASA)
Pictures of the Week: 12.16 -12.22 2012 | CLIK/HEAR | Multimedia, photography, video showcase of The Palm Beach Post http://clikhear.palmbeachpost.com/2012/potw/pictures-of-the-week-12-16-12-22-2012/

Comet Lovejoy's tail  彗星Lovejoy 的尾巴

Dan Burbank / NASA file
Past and future Christmas comets - PhotoBlog http://photoblog.nbcnews.com/_news/2012/12/24/16132357-past-and-future-christmas-comets?lite

NASA / JPL-Caltech / Ken Kremer / Marco Di Lorenzo
Curiosity rover studies rocks and a 'flower' on Mars - PhotoBlog http://photoblog.nbcnews.com/_news/2013/01/03/16329185-curiosity-rover-studies-rocks-and-a-flower-on-mars?chromedomain=cosmiclog&lite

NASA
A handout picture released by NASA on 30 January 2013 shows an Atlas V 401 rocket streak into the sky from the Cape Canaveral launch pad in Florida, USA, 30 January 2013
satellite - Latest news, videos, and information- NBCNews.com http://www.nbcnews.com/id/42992909/ns/us_news-satellite?q=satellite

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