physical sciences
- observational sciences
- astronomy
- astrophysics
- cometology
- cosmology
- heliology (the Sun)
- meteoritics
- planetary science
- areology (Mars)
- cytherology (Venus)
- exoplanets (outside our solar system)
- hedeology (Pluto)
- hermeology (Mercury)
- kronology (Saturn)
- poseidology (Neptune)
- selenology (the Moon)
- uranology (Uranus)
- zenology (Jupiter)
- terrestrial sciences
- climatology
- exoclimatology (other planets)
- meteorology
- exometeorology (other planets)
- ecology
- geography
- geomorphology
- orography (mountains)
- speleology (caves)
- geology
- exogeology (other planets)
- geochronology
- geophysics
- lithology
- mineralogy
- crystallography
- gemology (gemstones)
- pedology (soil)
- petrology (rocks)
- plate tectonics
- sedimentology
- seismology (earthquakes)
- exoseismology (other planets)
- vulcanology (volcanoes)
- hydrology
- exohydrology (other planets)
- glaciology
- limnology (freshwater/inland water)
- oceanography
- potamology (rivers)
- experimental sciences
- physics
- acoustics
- chemistry
- kinematics
- materials science
- metallurgy
- tribology (interacting surfaces)
- mechanics
- optics
- particle physics
- relativity
- rheology
