As a kid, I was obsessed with space. Well, I was obsessed with nuclear science too, to a point, but before that, I was obsessed with space, and I was really excited about, you know, being an astronaut and designing rockets, which was something that was always exciting to me.

If you look at the scientists who really make a difference, they think boldly. They're not afraid to question what they see.

I started out with a dream to make a star in a jar in my garage, and I ended up meeting the President of the United States!

When I hold something that's radioactive, it's kind of an indescribable feeling. It's kind of like when I'm with my girlfriend.

From the moment I open my eyes, I'm trying to free my body. I'm trying to get looser, more flexible, to gain control. Movement is medicine to me.

From education to the environment, from high wages to health care to human rights, California is proof that progressive policies put into action improve the human condition of all individuals.

I've lost seven friends to smoking-related lung cancer. Each death was a long, agonizing experience.

Each of us should think of the future. Every puff on a cigarette is another tick closer to a time bomb of terrible consequences. Christopher Hitchens didn't care about the consequences of smoking cigarettes. Tragically, he died of throat cancer in December 2011.