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Source: NASA, ESA
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Source: ESA
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Source: Tumblr
posted by hetalianstella
 A photograph of the Hubble Ultra Deep Field. Every single little dot of light 你 see in this picture is an entire galaxy. Over 10,000 in this image alone.
A photograph of the Hubble Ultra Deep Field. Every single little dot of light you see in this picture is an entire galaxy. Over 10,000 in this image alone.
A bunch of Astronomical facts I find interesting. Hope 你 enjoy them and learn something new :)

- Every 秒 there are 4,000 stars that are born and 30 supernovae that take place in the observable universe.

- The 心 of a 星, 星级 reaches 16 million °C. A grain of sand this hot would kill someone 150 km away.

- 太空 is not a complete vacuum, there are about 3 atoms per cubic meter of space.

- The coldest place in the universe is on Earth. In Wolfgang Ketterles lab in Massachusetts. 0.000000000001 degrees Kelvin.

- Most of the universe is dark. Only 4% of the universe is what we can actually...
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Source: Min An @ Pexels.com
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Source: WallpapersCraft.com
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Source: www
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Source: Bing.com
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added by Crazy-Chica
We as human beings should feel fortunate that the nearest known active quasar to our planet is over half a billion light year's away, for their force is so massive, that they are able to consume mass the size of entire galaxies. The most distant known objects in the universe from us, the first quasar ever discovered was only found as recently as 1950.
 Components of a quasar
Components of a quasar

A quasar is born when the gravity of a supermassive black hole causes mass and light energy falling into it to form a highly dense accretion disc surrounding it. Incredibly, the mass located at the center of a quasar...
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added by glelsey
Source: Superb 壁纸
added by glelsey
Source: didyouknowblog.com
added by lilyZ