The number of habitable worlds in our galaxy is certainly in the tens of billions, minimum, and we haven't even talked about the moons. And the numbe….

We're hard-wired by 200,000 years of evolution to be sensitive to the idea that someone might be watching us. They might be predators, after all. An ….

Like prospecting in the 19th century, reconnaissance of the asteroids would of necessity take place in an arena where trouble is likely and help is d….

Odors can be highly transitory, depending on the air currents. If this is happening in your house, ask if there are any possessions of that deceased ….

The search for extra-terrestrial life is a failure until that moment when it suddenly becomes a success..

There is a point of view among astronomical researchers that is generally referred to as the Principle of Mediocrity. ... If the Sun and its retinue ….

While about one-third of Americans believe in ghosts, you won't find many exhibits on these spooky beings down at the local science museum. Why? Well….

Our brains are wired to interpret shapes as faces and bodies. That's why people see the Virgin Mary in the clouds or even in cheese sandwiches. It's ….

No heating system can deliver perfectly uniform temperatures throughout a house, and drafts can magnify the perceived difference in temperatures. Try….

If you took all the sand from all the beaches, all the desserts, and all the oceans and called that the Universe, our whole solar system would be les….

Five centuries from now - barring unimaginable catastrophe - the moon will be developed real estate. There's economic incentive to exploit the moon -….

There is little chance that aliens from two societies anywhere in the Galaxy will be culturally close enough to really 'get along.' This is something….

If this is the only planet on which not only life, but intelligent life, has arisen, that would be very unusual..

The split between religion and science is relatively new. Isaac Newton, who first worked out the laws by which gravity held the planets and even the ….

Neil Armstrong was no Christopher Columbus. In most respects, he was better. Unlike the famous fifteenth century seafarer, Armstrong knew where he la….

[O]ne might ask why, in a galaxy of a few hundred billion stars, the aliens are so intent on coming to Earth at all. It would be as if every vertebra….

Despite the impression you may have from watching too much TV, movies are not about reproducing reality. Theyre about telling stories..