'As a fraction of your tax dollar today, what is the total cost of all spaceborne telescopes, planetary probes, the rovers on Mars, the International Space Station, the space shuttle, telescopes yet to orbit, and missions yet to fly?' Answer: one-half of one percent of each tax dollar. Half a penny. I'd prefer it were more: perhaps two cents on the dollar. Even during the storied Apollo era, peak NASA spending amounted to little more than four cents on the tax dollar.

It seems that we're better at finding someone to blame for our problems than we are at finding creative solutions to fix them.

One of the things that fascinates me most is when people are so charmed by the universe that it becomes part of their artistic output.

Today, in this, the 21st century, bedtime doesn't matter at all. All that matters is what you set for your DVR.

Not everyone is going to like science as a subject.

The greatest teachers are the ones that turn a B student into an A student, or a failing student into a B student.

When scientifically investigating the natural world, the only thing worse than a blind believer is a seeing denier.