Several billions years from now, the Milky Way - merge with our neighboring galaxy Andromeda - billion-year-long light show
Hypernova Eta Carinae 海山二 crazy star, massive star 100 times more massive than sun- a hypernova when exploded. For earth: a second moon Southern Hemisphere.“ The most dramatic Swan Song a star can sing “
Dark Stars
"With all due respect,father,surely you friend was mistaken.If no one can see them,then how can we possibly know they exist？" "Did you see the man who left those footprints,Jone?""Why,no,father,I did not."But do you know that he exists?”
-cosmos:A Spacetime Odyssey
火爆！《宇宙时空之旅》—笔记整理
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