ASTR 101 Lecture Notes - Lecture 19: Terrestrial Planet, Big Bang, Molecular Cloud
13 Dec 2016
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The future of the human race in space. We have billions of years to do this - because when the sun formed is completely arbitrary. The universe has a lot of time compared to typical human considerations. 20, or 1000s of robots to the nearest star within a planet. The fate of the earth as a planet. Hitting us with an asteroid will not do a lot to earth as a planet. But it could kill 90% of life on earth. It"s not good; global warming could eventually make society fall apart if it gets bad enough. Theoretically you could live in antarctica- worse case scenario. We could try to help ourselves into extinction, through. Or by various diseases and apocalyptic scenarios. But even if humans die it doesn"t mean the cockroaches will. We expect that once over 100 million years, a 3-7km diameter asteroid hits the earth, Super-volcanos are another threat to life on earth.
