NASAのインスタグラム(nasagoddard) - 4月26日 00時15分
A new window to the universe opened for humanity on the morning of April 24, 1990, when NASA's Hubble Space Telescope was lofted into space, riding atop a Promethean flame from the space shuttle Discovery. NASA and ESA are celebrating the Hubble Space Telescope's silver anniversary of 25 years in space by unveiling some of nature's own fireworks — a giant cluster of about 3,000 stars called Westerlund 2. The cluster resides inside a vibrant stellar breeding ground known as Gum 29, located 20,000 light-years away in the constellation Carina. #Hubble25
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2015/4/26
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