22: The Solar System Last updated Save as PDF Page ID6142 Contributed by CK12CK12 22.3: Outer Layers of the SunThe Solar System: Challenge 122.1: Sun22.2: Interior of the Sun22.4: Surface Features of the Sun22.6: Planets of the Solar System22.7: Planet Orbits in the Solar System22.8: Gravity in the Solar System22.9: The Solar System- Challenge 222.10: Inner vs. Outer Planets22.11: Mercury22.12: Venus22.13: Moon22.14: Mars22.15: The Solar System- Challenge 322.16: Jupiter22.17: Saturn22.18: Uranus22.19: Neptune22.20: The Solar System- Challenge 422.21: Exoplanets22.22: Asteroids22.23: Comets22.24: Meteors22.25: Dwarf Planets22.26: The Solar System- Challenge 5