What Is a Black Hole in Space?
One of the strangest mysteries of outer space is a “black hole.” A black hole is a place in space where gravity is very strong as the matter is squeezed into a tiny...
Read MoreOne of the strangest mysteries of outer space is a “black hole.” A black hole is a place in space where gravity is very strong as the matter is squeezed into a tiny...
Read MoreWhat Causes the Ocean Tides? The rise and fall of the tides are caused mainly by the pull of gravity from the moon on the earth’s waters. The moon pulls up the...
Read MoreHow Do Frisbees Fly? When a Frisbee soars through the air, its spinning motion is what keeps it flying. Operating on the principle of an airfoil — any flying object...
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...
Read MoreWhat Causes Ocean Tides? Tides are the rise and fall of the levels of the ocean. They are caused by the gravitational pull of the Sun and Moon as well as the rotation...
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