Comets Asteroids Meteorites Planetary Science AST 103 - Exam 2| Solar System Dynamics, Terrestrial and Jovian Planets, Core Mantle Differentiation, Planetary Atmospheres, Magnetic Fields, Accretion and Radiogenic Heating, Tidal Forces, Crust Mantle Core S

Comets Asteroids Meteorites Planetary Science AST 103 - Exam 2| Solar System Dynamics, Terrestrial and Jovian Planets, Core Mantle Differentiation, Planetary Atmospheres, Magnetic Fields, Accretion and Radiogenic Heating, Tidal Forces, Crust Mantle Core Structure, Earth Seismology, Meteorite Classification, Stony-Iron and Iron Meteorites, Chondrites and Achondrites, Lunar and Martian Meteorites, Kuiper Belt and Oort Cloud Objects, Dwarf Planets, Planetary Rings Formation, Saturn Uranus Neptune Jupiter Rings, Cloud Layers, Atmospheric Composition, Venus Extreme Temperatures, Planetary Wind Patterns, Jovian Cloud Systems, Planetary Magnetic Activity, Solar System Exploration Missions, Halley Deep Impact Stardust Rosetta, Comet Anatomy, Plasma and Dust Tails Exam Questions Verified and Provided with Complete A+ Graded Rationales Latest Updated 2026 In what ways are the comets similar to asteroids? Similar in composition (both have rock and metal), orbit (both orbit the sun), and both have primordial material In what ways are the comets different from the asteroids? Composition (both have rock and metal but comets are like gravel snowballs with ice and dust) and Orbits (asteroids orbit the asteroid belt, Trojans, and Near Earth Asteroids while comets orbit the Oort cloud and the Kuiper belt) What is the anatomy of a comet? Nucleus, coma, dust trail, and plasma tail What is the nucleus of comet? In the middle, made of rock and metal. What is the coma of a comet? Glowy part, escaping ice and dust. (At 3 AUs from the sun the sublimate - turn from solid to gas) What is the dust trail of the comet? Curves away, streaming, yellow-ish What is the plasma trail of the comet? Straight and blue-ish What missions have visited comets? Halley's Comet (1986), Deep Impact (2005), Stardust (), and Rosetta (2015 or 2016) What was the purpose of Deep Impact (2005)? We intentionally hit it with something to see what it was made of. What was the purpose of Stardust ()? To bring apart of it back. What was the purpose of the Rosetta mission (2015 or 2016)? Sent a tether and it bounced three times and it landed in a cave and died due to it being solar powered. W