Can we live on a different planet?
How did the universe start?
Will it be possible to interact with extraterrestrial creatures?
How might the discovery of life on another planet affect our actions here on Earth?
If you were to find life on Mars, what do you think it would look like?
How can the logistical challenges of manned travel to Mars best be solved?
What is a Star?
How big is the universe?
How come we can see just one side of the moon?
What are the white spots on Ceres?