When we see animals doing remarkable things, how do we know if we're simply seeing tricks or signs of real intelligence? Are talented animals just obeying commands, or do they have some kind of deeper understanding? One of the biggest challenges for animal researchers is to come up with tests that can distinguish between the two.

All Plutophiles are based in America. If you go to other countries, they have much less of an attachment to either the existence or preservation of Pluto as a planet.

The value of the space program is beyond science, it's beyond military; it's a cultural shift in how we think of our place in the universe.

Facts are true whether or not you believe them.

Enjoying science shouldn't be rocket science.

Without new economies, our old economies get our jobs taken from them because everyone else has figured out how to do it.

Kids should be allowed to break stuff more often. That's a consequence of exploration. Exploration is what you do when you don't know what you're doing.