Geography 2090A/B Lecture Notes - Lecture 16: Fermi Paradox, Planetary System, Drake Equation
22 Jun 2016
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***reading good source for test material: has more in depth information two famous instances of potential identification of extraterrestrial life, identifying fossilized remnants of a possible life form, the wow signal. Signal detected from outer space in 1977 that was never tracked again. The known universe and distance: the size and distance between objects in space = huge problem. The nearest star to earth is 4. 2 light years away, at about 5% of c, it would take. 100 years to travel there (data would take 42. Voyager 1 will drift within 1. 6 light years of another star, in 40k years. If new horizons were directed towards alpha centauri, it would reach the system in 78k years. The space shuttle travelling at full speed would take 165k years to reach the nearest star. The drake equation: seti pioneer frank drake formed an equation aimed at identifying the number of civilizations in the universe.
