1.   A statistical analysis based on this data suggests that well over half the stars are being orbited by rocky terrestrial material.

2.   Certainly, evidence of intelligent civilizations on planets orbiting distant stars would be an epochal event in human history.

3.   ...a planet orbiting a star in the constellation of Cepheus.

4.   Preliminary evidence suggested that a second planet was also orbiting the star further out.

5.   Also, scientists hope to refine observing techniques that might be used to study the atmospheric composition of planets that orbit other stars.

6.   And the planet is orbiting both stars at a distance about seven times that of the Earth-Sun distance.

7.   As far as scientists know, other, smaller planets may orbit these stars.

8.   Astronomers are only now accumulating enough data to identify planets that orbit their stars so slowly.

9.   Astronomers have detected not only planets orbiting stars other than the Sun.