ASTRON 2B03 Lecture Notes - Lecture 5: Oort Cloud, Kuiper Belt, Formation And Evolution Of The Solar System
10 Apr 2018
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Document Summary
Currently looking for evidence of past or present life, water. Liquid water possibly exists under the moon"s icy surface. Water could be warmed by volcanic events on the ocean oor. Conditions similar to early earth, atmosphere has organic molecules. Liquid lakes on its surface (probably composed of ethane/methane) seti. Mission is to explore, understand, explain the origin/nature/prevalence of life in the universe. In march 2004, phoenix project announced after checking the. 800 stars on its list it had failed to nd any evidence of et signals. Estimate # of et civilizations in our galaxy with which we might come in contact. Main purpose of the equation is to quantify the uncertainty of the factors which determine the number of such et civilizations, determining n" = civilizations with communication potential. Voyager golden record - greetings in many languages, music from many cultures, animal sounds, pictures etc. Contracts into a rotating disk - star forms in the center (mostly hydrogen, some helium)
