planets

To the Moon, the other planets—out of the Solar System, for that matter; to the other galaxies, even.

But designing a machine to handle the planets and the sun, while a lot simpler, was still a complex problem.

It has always seemed to me unsafe to base calculations respecting suns and planets on experiments conducted in the laboratory.

But fourteen planets require a whole council of co-ordinators!

Weber explains the movement of the planets around the sun by "electro-dynamism."

Kepler had reasoned out according to physics the laws by which the planets moved.

And what are we to say of the projectile impulse in the case of the planets?

Maybe they colonized some of those Earth-type planets we checked on.

He deduced the relative weights of the earth, the sun, and of Jupiter and Saturn, the planets with satellites.

Also, a term used for rapidly scrutinizing a certain portion of the heavens in quest of planets, comets, &c.