A lot of my role is advocacy, and as a scientist, you're an advocate, too, because you are coming up with a theory and having to convince your fellow scientists that you're right.

One of the big things about space exploration is that it is as expensive as it is complicated, and you need all the countries of the world to help if you want to accomplish big goals.

With the mission to Mars, the whole world wants to get involved. So we actually have 13 different space agencies from around the world working on the global exploration road map.

My key aim is to get man on the surface of Mars by the mid-2030s.

I vowed to myself that when I grew up and became a theoretical physicist, in addition to doing research, I would write books that I would have liked to have read as a child. So whenever I write, I imagine myself, as a youth, reading my books, being thrilled by the incredible advances being made in physics and science.

Some of the greatest relationship films of all time, the two stars have hated each other, but mostly you see that chemistry.

I know, on 'Rick and Morty,' we had the time where they unfreeze time, and they're in trouble because of it. The time starts splitting. That episode, we got a little too focused on 'how,' the hows and the science behind it, and oh my God, it was - it was spiraling us for sure.

The lives of those such as Charles Darwin and Albert Einstein are plainly of interest in their own right, as well as for the light they shed on the way these great scientists worked. But are 'routine' scientists as fascinating as their science? Here I have my doubts.