Light Fantastic
On the next hot summer day, imagine what would happen if the Sun suddenly became one million times brighter. Ice cream would quickly melt, sunscreen lotion wouldn't work very well, and that's just the beginning. Thankfully, our Sun doesn't misbehave this way.…
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More science facts
Biology
What Are Stem Cells?
When an egg is fertilized by a sperm cell, it quickly becomes a single cell from which all cells of the…
Chemistry
What Is A Half-life?
When isotopes break down, or decay, they usually split apart into two smaller atoms. Excess neutrons and…
Geology
Natural Gas - The Blue Flame
It is colorless, shapeless, and in its pure form, odorless. For many years, it was discarded as worthless.…
Medicine
What Is a Bruise?
A bruise is a deposit of blood under the skin. It flows from tiny capillaries that break when you bump your…