Astronomy is the best science for studying planetsAstronomy is the best science for studying planets
A look at the planets from the height of the mountainsA look at the planets from the height of the mountains
A planet illuminated from space three-dimensional imageA planet illuminated from space three-dimensional image
Небесное тело, вращающееся вокруг Солнца и получающее от него свет и тепло.