We can bring small things back from other planetary systems.

"We live in a common cluster of stars and planetary systems."

The star was announced to have a planetary system in 2010.

There are a number of life forms involved, from different planetary systems.

His telescope is still being used in the search for these planetary systems.

Behind the figure there appears to be a representation of a planetary system.

We're the only thing between the enemy and 17 major planetary systems.

Then he would recognize the planetary system and know what to look for.

He could probably take half the key planetary systems in the next six or eight years.

Kepler-10 is host to a planetary system made up of at least two planets.