Did you know that the "Seven Sisters" known to the Greeks is the same as the "Flint Boys" known to the Navajo?
Did
you know that solar
eclipses are caused when the Earth passes through the Moon's shadow?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
Magnetic polarity reversal
xMagnetic polarity reversal : A magnetic polarity reversal is a change of the earth's magnetic field to the opposite polarity. This has occurred at irregular intervals during geologic time.
Scientists who study plants in the Sonoran Desert are worried about global warming. Desert winters have become warmer and drier over the years, and climate changes have pushed the arrival of winter rains...Read more