What Are Sunspots?
Sunspots are dark, relatively cool spots on the surface of the sun in a region called the photosphere. Sunspots have temperatures of about 3
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Sunspots are dark, relatively cool spots on the surface of the sun in a region called the photosphere. Sunspots have temperatures of about 3
How Did Earth Get Its Name? The name “earth” comes from the Old English and German words “eorthe, ertha & erde.” Before people h
What Makes the Wind Blow? Wind is air in motion. Wind is caused mainly by the uneven heating of the air around the earth by the sun. Since t
The distance to the horizon, the imaginary line where the sky seems to meet the earth, depends on how high our eyes are above the level of t
Could Man Made Satellites Cause an Eclipse? The planets and the moons have long, tapering shadows pointing away from the sun and the biggest