My first inclination is to be a bit skeptical about the claims that human-produced carbon dioxide is the direct contributor to global warming.

At the core of the risk-free society is a self-indulgent failure of nerve.

'Anthony and the Magic Picture Frame' tells it like it really was in America's early space program - the adventure, the risks, and the rewards.

There's a tremendously satisfying freedom associated with weightlessness. It's challenging in the absence of traction or leverage, and it requires thoughtful readjustment. I found the experience of weightlessness to be one of the most fun and enjoyable, challenging and rewarding, experiences of spaceflight. Returning to Earth brings with it a great sense of heaviness, and a need for careful movement. In some ways it's not too different from returning from a rocking ocean ship.

Fighter pilots have ice in their veins. They don't have emotions. They think, anticipate. They know that fear and other concerns cloud your mind from what's going on and what you should be involved in.

I inherited depression from my mother's side of the family.

I think both the space shuttle program and the International Space Station program have not really lived up to their expectations.