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orbit

Why Do We Experience Day and Night?

You are well aware that the brightness of today will in about 12 hours give way to the darkness of the night. You are also aware that there is a reversal of these conditions everyday - that while a part of the earth is lit up by the sun's light, the other part, away from [...]

Science Corner: What is a Satellite?

Global Positioning System Satellite (GPS) orbiting round the Earth I know what you are thinking. You are thinking along the lines of your DSTV satellite dish, or the type you see in Science documentaries, and movies like Gravity, and The Martian. Well, you may not be too far from the truth. A Satellite [...]