Oceans became saline hundreds of millions of years ago as rainfall mixed with sodium from the Earth's crust.
When looking at a picture of the sun, how could you tell whether or not it's rising or setting?
When Neil Armstrong took his "one small step", the impression he made was lasting.
Raindrops batter the front windshield and seem to avoid the back window as long as the car is moving. How is that possible?
Clouds can range in color from brilliant white to almost black. Why?
The largest hailstone ever recorded was over five inches in diameter, weighed over one and a half pounds, and fell on Coffeyville, Kansas in September of 1970.
A single lightening bolt carries a peak current that's ten thousand times what an average light bulb would use.
Why are raindrops different sizes when they fall from the sky?
It smells like rain, but how? Find out in today's A Moment of Science.
The narrow range of angles at which the colors are reflected is the key to why rainbows must be curved.