the science dealing with the paths of space vehicles.
(functioning as sing) the study of the motion of natural and artificial bodies in space
The dynamics of natural and artificial bodies in outer space.
to in outer space.
the science dealing with the structure and composition of planets and other bodies in the solar system. noun the study of the structure, composition, and history of other planets and other bodies in the solar system
astroglia astroglia as·trog·li·a (ās-trŏg’lē-ə) n. See astrocyte.
a navigational device for projecting altitude curves of the stars and planets onto charts or plotting sheets.