ASTR 1101 Study Guide - Midterm Guide: Planetary Science, Radiocarbon Dating, Riak
Document Summary
Chapter 7: io jupiter"s moon, volcanic, sulfur, no atmosphere because it doesn"t have enough gravity to heat it"s surface, titan (saturn"s moon) is the only moon that has an atmosphere mostly methane (ch4, venus, mars, earth have atmospheres, mercury does not (terrestrial planets, jupiter, neptune, uranus, saturn (jovian planets) have atmospheres but are made out of gas instead of rock, mercury, venus, and mars are all smaller than the earth, the sun is 109 time bigger than the earth, all of the planets have been visited by a spacecraft flying by and taking pictures, our moon was the only other place humans have visited, mars, venus, titan (saturn"s moon), have been landed on, asteroids have very little gravity so they are harder to land on than planets, jupiter"s spot is a hurricane (larger than earth) that has lasted for at least 400 years (since telescopes were invented, mars has volcanoes and a polar ice cap.
