Black holes 吞, 燕子 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 发布 一年多以前

it's so good to know about our universe. 发布 一年多以前

I like how 更多 people are a 粉丝 of The Universe then they are of Earth. WE LIVE ON EARTH PEOPLE!!! 发布 一年多以前

always mysterious! 发布 一年多以前

To The World Your Just One Person, To One Person Your The World 发布 一年多以前