Earth Sciences 1086F/G Lecture Notes - Milky Way, Small Solar System Body, Solar Wind
20 Apr 2014
School
Department
Course
Professor
Document Summary
Hypothesis: is an educated guess based upon observation: can be supported or rejected, it can never be proven true. Theory: summarizes a hypothesis that has been supported by repeated testing and observation, considered valid as long as there is no firm evidence to dispute it. A theory allows you to make predictions of the end-result of the process being examined. Law: generally accepted as the proper explanation of the whole process. Mily way galaxy shaped like a disc, look parallel we see so many stars, look perpendicular we can see out into space. Galaxies distributed more or less evenly through space. If stars in galaxies had been radiating heat and light energy for a long time they would have heated the universe up to their temperature. Singularity: a point of infinite density and infinitesimal volume, at which space and time become infinitely distorted, according to bbt, a singularity existed at the beginning of the universe.
