Russian astronaut
cosmonaut
White ring around sun
corona
No human life
dehumanize
The path the moon follows around the earth
elliptical
Boundary of a country
frontier
Measured by the revolution of the moon
lunar
Property of reltaive size
magnitude
apparatus or model representing the planetary system
planetarium
foretell from signs or symptoms
prognosticate
Supernatural or inexplicable basis
uncanny