If we had found a new planet this year, I don't know how he would have managed.

If they found a planet today and he went back, she would be an old, old woman, or dead.

Suppose we found a planet on which animal life had just begun.

"This time it appears they have really found a planet," he said.

She found a planet, near what for want of a better word had to be called the disc's horizon.

We found a planet where they'll rest through all eternity.

They found an ice age man intact, and a new planet.

You came to a fourth and found a planet to land on.

I'd just rather we found a planet of our own.

In 2009, the first group of astronomers found a fourth planet, named 581e.