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How long do most planets last?Planets are born, and they can also "die." So what's the lifespan of a typical planet?
2 Commentsplanets -
What are ghost lineages, remnants of the past that still exist in our DNA today?Ghost lineages reveal themselves through ancient genes that still exist in living beings today.
3 Commentshuman-evolution -
Did ancient Greeks let women compete in the Olympics?The ancient Olympic games were crowded with male athletes, but were there opportunities for females to compete in sports?
archaeology -
Why do kids eat their boogers?There may be something more than just a bad habit behind this behavior.
3 Commentshuman-behavior -
When were boats invented?The oldest physical boat is a canoe from roughly 10,000 years ago, but evidence suggests humans have been using watercraft for at least 50,000 years.
archaeology -
How long does it take the sun to rotate?The time it takes for the sun to completely rotate depends where on the sun you are measuring.
4 Commentsthe-sun -
Why does the moon look larger when it's on the horizon?The moon looks enormous when it's near the horizon — why is that?
2 Commentsthe-moon -
Why don't you usually see your nose?Our nose is right in front of us. So why don't we normally notice it?
health -
Could there ever be a worldwide internet outage?We've all dealt with bad internet connections. But could the entire internet ever collapse?
communications
