This was a time of great excitement and energy among planetary scientists.

If there are, I bet planetary scientists will play a central role in understanding them.

Such a search program had been advocated by many planetary scientists.

I'll put it to a couple of the planetary scientists that I know.

But space and planetary scientists have vigorously attacked this view in recent years.

At least one planetary scientist says he was ready to recommend a public warning.

After four decades, this conference continues to draw planetary scientists and researchers from around the world.

Planetary scientists have a rare opportunity to pick the destination for their next big mission.

Such speculation is an increasingly popular topic among planetary scientists.

For 15 years, planetary scientists have known that there is something odd about Neptune.