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NASA astronomers announced Thursday they can now predict with certainty the next major cosmic event to affect our galaxy, sun, and solar system: the titanic collision of our Milky Way galaxy with the neighboring Andromeda galaxy. The Milky Way is destined to get a major makeover during the encounter, which is predicted to happen four billion years from now. It is likely the sun will be flung into a new region of our galaxy, but our Earth and solar system are in no danger of being destroyed. Weird Alien Worlds Beyond Our Solar System:http://youtu.be/ofxY-mb503Y Black Holes And The Faith of Our Universe:http://youtu.be/SvaeuL8tamw The Cosmos:Narrated By Morgan Freeman:http://youtu.be/s1f4AoMkN0g Biggest Most Complex Machine in History:http://youtu.be/ttoahynG184 Lightning Sprites at the Edge of Space:http://youtu.be/pYVr2XH_1FU Biggest Things in The Universe:http://youtu.be/qsc4kzYpmkQ Killer Asteroids in Our Universe:http://youtu.be/SQZ7AH09J5w Can Mars be Colonized ?:http://youtu.be/f1Q9CPe1JIw Wild and Destructive Weather:http://youtu.be/v5E06fg1y2Q Hubble:Exploring the Universe:http://youtu.be/CW2d32Go7yk Neil Armstrong the First Human on The Moon:http://youtu.be/yqQgrGQnYQM Aftermath When The Earth Stops Spinning:http://youtu.be/xiqCowa0iQo