Did you know that there was a time before fire ever existed? Learn more on this Moment of Science.
"Where Is Everybody?" Learn about the Fermi Paradox on this Moment of Science.
Is it true that if the laws of nature were changed even a little bit, there would be no people in the universe? Find out on this Moment of Science.
Are there really alien civilizations out there that we don't know about? Find out on this Moment of Science: "The Fermi Paradox".
Could aliens come down to earth to eat us? Find out on this Moment of Science.
Have astronomers found a new planet? Or is an asteroid in our midst?
E. T. phoned. Now what? Learn about the earth's response to alien contact on this Moment of Science.
Wouldn’t it be nifty if there was a way we could see into rocks without having to break them? Just think of it. If we could see inside of rocks without having to slice them open, then perhaps we could see into rocks on other planets like Mars. And maybe then we could detect forms of life inside these rocks.
How fast anything spins is partly determined by how its weight is distributed. The closer an object’s weight is to its axis of rotation, the faster it spins. To picture this, imagine an ice skater doing a pirouette. When her arms are extended, she spins slowly.