Black holes 제비, 삼키기 matter and energy prevent expanding too much of the universe
Black holes are preventing fragmentation of the universe.
I think it's a good news 게시됨 over a year ago

it's so good to know about our universe. 게시됨 over a year ago

I like how 더 많이 people are a 팬 of The Universe then they are of Earth. WE LIVE ON EARTH PEOPLE!!! 게시됨 over a year ago

always mysterious! 게시됨 over a year ago

To The World Your Just One Person, To One Person Your The World 게시됨 over a year ago