planets
Astronomy deals with the stars and planets.
planets
Gravity binds the planets to the sun.
planets
He is always writing about journey to other planets.
planets
Is there intelligent life on other planets?
planets
Is there life on other planets?
planets
I wonder if life exists on other planets.
planets
J. Kepler, astronomer and mathematician, made a study of planets and their movements.
planets
Nine planets including the earth are moving around the sun.
planets
Planets move around a fixed star.
planets
Scientists can easily compute the distance between planets.
planets
Seen through a telescope, the planets take on completely a new appearance.
planets
The earth is different from the other planets in that it has water.
planets
The earth is one of the planets.
planets
The earth is one of the sun's planets.
planets
The Earth, Mars and Jupiter are planets.
planets
The planets revolve around the sun.
planets
There are nine planets travelling around the sun, the earth being one of them.
planets
The smaller planets hovering around the planet Jupiter reminded him of the guards surrounding a king when he walked outdoors, and Kepler called them satellites.
planets
The sun has nine planets.
planets
This chapter will focus on the riddles of the planets.