What Are Shooting Stars?
If you look up at the sky on a clear night, you may see a “shooting star” flash across the sky, but they are not stars. Shooting stars are bits of space...
Read MoreIf you look up at the sky on a clear night, you may see a “shooting star” flash across the sky, but they are not stars. Shooting stars are bits of space...
Read MoreNatural gas is believed to be formed from the remains of ancient plants that lived in the shallow seas that once covered much of the earth. Many layers of the decayed...
Read MoreWhy Does Hair Turn Gray When People Are Old? Different hair colors, from blond to black, are determined by the melanin, or coloring matter, in your hair cells. This...
Read MoreWhy Does the Ocean Look Blue? The ocean usually appears to be blue. However, sea water, as anyone knows who has splashed about in the surf, is actually colorless. The...
Read MoreHow Did the Solar System Begin? To this day, the birth of our solar system remains a mystery. Scientists believe that some 4.6 billion years ago, a vast cloud of dust...
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