And the quest to understand the extreme universe will not end with the latest mission.

So what will be the consequences for humanity if the quest ends?

With problems like these unresolved, it is not likely that the quest may have ended.

The quest would not end until success had come.

Gray's quest had ended when he nearly got Bonnie and his crew killed.

The quest to get the truth before the people was never ending for him.

Let us hope your quest does not end at their hands.

His quest for the truth ends in a shocking revelation.

Her quest for self-definition does not end with marriage though.

Very suitable, that my quest should end with one of these.