5 Terms
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Planetary science
The scientific study of planets including Earth, moons, and planetary systems of the Solar System in particular and the processes that form them.
Industry: Astronomy
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Planetary science
coma
Astronomy; Planetary science
A large cloud of dust and gas which escapes from the nucleus of an active comet.
cryptomaria
Astronomy; Planetary science
Buried mare basalt lavas on the Moon. Many light plains in the lunar highlands have impact craters surrounded by dark piles of ejecta, nicknamed "dark-haloed craters. " The dark-haloed craters formed ...
sill
Astronomy; Planetary science
A tabular, parallel-sided sheet of igneous rock, formed underground, that is parallel to the layered rocks around it.
mare soil
Astronomy; Planetary science
Sediment on the surface of the lunar maria; fragments of basalt rocks, broken mineral grains, and glass produced by impact.
polycyclic aromatic hydrocarbons (PAH)
Astronomy; Planetary science
One group of hydrocarbons (benzene) produced by decomposition or decay of organic matter. These are certainly aromatic: they stink!
