Dr. Katya Petrovna: Life on Earth began in the ocean, so in some ways this mission will be like taking a trip back in time.
Dr. Samantha Unger: As the ship passed the moon, it had already gone further than any human being had ever gone before. Think about that. Across all of human history, that moment was the farthest anyone had ever gone. But they still had millions upon millions of miles to go. Our craft was heading for a moon of Jupiter known as Europa.
Andrei Blok: What would you do if you get out there and find nothing?
William Xu: Well, even if we found nothing it's an effective discovery.