It seems to be possible for planets in a stable solar system to somehow get off track and run into each other. Is our planet in danger?
During a "meteor shower" bits of rocky material that enter our atmosphere from space burn up because of friction.
The narrow range of angles at which the colors are reflected is the key to why rainbows must be curved.
What makes the sun shine? It's a question we rarely give much thought. However, there is a scientific explanation for this commonplace phenomenon.
Do you sneeze when you see a bright light? Then you may have photic sneezing. Learn more about this condition on this Moment of Science.
The physicist Artur Eddington once said he hoped one day science would have advanced far enough to understand "so simple a thing as a star."
How do you know the sun didn't just explode? We aren't talking about the everyday, run-of-the-mill controlled explosion the sun is always doing, but a big boom.
When the sun first rises in the morning it doesn't get warmer right away, but actually feels colder. Learn more on this Moment of Science.
Interested in a stock tip? Invest in companies that make sunscreen. Why? Because atmospheric aerosol levels are decreasing.
A full moon will never be seen during the middle of the day. Learn more on this Moment of Science.