Pinterest • 世界中のおしゃれアイデアまとめ

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.

A rare carbon star surrounded by a gas shell ejected about 800 years ago

Our entire solar system in this little dot of the Milky Way galaxy. There are around 300,000,000,000 stars in the Milky Way galaxy alone. Each star having possibly one or more planets in orbit.

[ BIOS Monthly ] 復古老照片與自然景觀的奇幻接合

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

The Mars Express took this photo of a crater on Mars filled with water ice.