By preventing dangerous asteroid strikes, we can save millions of people, or even our entire species. And, as human beings, we can take responsibility for preserving this amazing evolutionary experiment of which we and all life on Earth are a part.

We can both prevent asteroid impacts and address climate change. It's not either-or.

Journalists often put things into either-or scenarios.

I am interested in climate change and other topics too. But this thing is so huge, in the worst case we are talking about the end of our civilization.

We not only need to train people, we also need to develop deflection technologies.

You almost wish you could turn off the COMM and just appreciate the deafening quiet.

You see the Earth as a bright blue and white Christmas tree ornament in the black sky. It's so small and so fragile - you realize that on that small spot is everything that means everything to you; all of history and art and death and birth and love.