We haven't even reached the last planet of our own System.

He didn't dare act until they had reached the planet.

They were sent at the next launch window, and reached the planet in 1969.

I wonder if they know I've reached the planet at all?

However, its communications systems failed before it reached the planet.

The good part was that they would be reaching the planet in its late spring.

"How does it reach the planet in the first place?"

"I'll need something between now and the time we reach the planet."

It will take some time for the captain to reach the planet.

It is the primary force behind our drive to reach the red planet.