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added by lilyZ
Source: HubbleSite-Wallpapers
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posted by hetalianstella
 A photograph of the Hubble Ultra Deep Field. Every single little dot of light bạn 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 bạn enjoy them and learn something new :)

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

- The tim, trái tim of a ngôi sao reaches 16 million °C. A grain of sand this hot would kill someone 150 km away.

- không gian 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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added by AllenW1216
added by AllenW1216
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Source: Superb các hình nền
added by glelsey
Source: Superb các hình nền
added by glelsey
Source: Superb các hình nền
added by glelsey
Source: Superb các hình nền
added by glelsey
Source: ultrafacts @ tumblr
added by lilyZ
added by lilyZ
added by glelsey
Source: WallpapersCraft.com
added by emmett
Source: deviantart.com