It turns out that the history of astrophysics is where we perfected time keeping.

And extracting one molecule's signature in spectral analysis from the rest of the signatures is hard work, sort of like picking out the sound of your toddler's voice in a roomful of screaming children during playtime. It's hard, but you can do it.

A common way to compute density is, of course, to take the ratio of an object's mass to its volume. But other types of densities exist, such as the resistance of somebody's brain to the imparting of common sense.

With ticket prices, do you ask yourself, why I'm paying $70 to see the arts? You say, "No, that's what the symphony is costing me."

That the north star is the brightest in the night sky. I'd guess about 9 out of 10 people think this. But it does not require a grant from the National Science Foundation to learn the answer. The North Star is not even in the top 40 in the night sky. It's the 49th brightest star. Rather dull and boring by most measures.

Practically every food you buy in a store for consumption by humans is genetically modified food. There are no wild, seedless watermelons. There’s no wild cows.

If the Sun exploded, we wouldn't know about it for 8 minutes and 20 seconds. Light and gravity take that long to reach us. Then we would vaporize.