スミソニアン博物館のインスタグラム(smithsonian) - 7月24日 03時01分

Today is the 15th anniversary of @chandraxray, Smithsonian Astrophysical Observatory's flagship X-ray telescope. To celebrate, four beautiful, newly-processed photos of supernova remnants have been released for all to feast their eyes upon. #chandra15 #astronomy #space #science #supernova #cosmos

[BIHAKUEN]UVシールド(UVShield)

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