ASTRO-110 Lecture Notes - Lecture 18: Martian Soil, Martian Meteorite, Allan Hills 84001
9 Sep 2020
School
Department
Course
Professor
Document Summary
Carbon assimilation experiment look for incorporation of carbon into the martian soil. Gas exchange experiment look for metabolic release of o2, etc, by microbes labeled release experiment look for change in release of radioactive elements in nutrients that were tagged with them. 13,000 years ago: fell to earth in antarctica. 16 million years ago: blasted from surface of mars. 4. 1 billion years ago: rock formed on mars. Microscopic photos show structures with a fossil-like appearance, but they may also have been formed by non-biological processes. Circular orbits in same direction as planet rotation. Far more numerous than the medium and large moons. Not enough gravity to be spherical: potato-shaped . Captured asteroids or comets, so orbits do not follow usual patterns. Io is the most volcanically active body in the solar system. Volcanic eruptions continue to change io"s surface. Io is squished and stretched as it orbits jupiter.
