The Milky Way galaxy is a disk about 120,000 light years across.  That is huge!  For perspective, if the Milky Way was as large as the continental United States, our entire solar system would be as big as the period at the end of this sentence.

The Milky Way galaxy is a disk about 120,000 light years across. That is huge! For perspective, if the Milky Way was as large as the continental United States, our entire solar system would be as big as the period at the end of this sentence.

AWESOME Interactive Map of our Galaxy

AWESOME Interactive Map of our Galaxy

Photo was taken on March 23, 2012 in Lapland, FI, using a Nikon D7000.    © Antti-Jussi Liikala

Photo was taken on March 23, 2012 in Lapland, FI, using a Nikon D7000. © Antti-Jussi Liikala

The story's about Tellarium, but I really like this picture.

The story's about Tellarium, but I really like this picture.

galaxy

Make a favorite screen!

galaxy

Galaxy

Galaxy

Space jump

Space jump

<b>pleiades</b> 300x246 Sky Tonight—January 15, Moon near Aldebaran and the ...

<b>pleiades</b> 300x246 Sky Tonight—January 15, Moon near Aldebaran and the ...

space station view of aurora over Yellowknife

space station view of aurora over Yellowknife

ハッブル望遠鏡 50の傑作画像 その3 | ナショナルジオグラフィック日本版サイト

ハッブル望遠鏡 50の傑作画像 その3

ハッブル望遠鏡 50の傑作画像 その3 | ナショナルジオグラフィック日本版サイト

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