In its daily run through the sky, the Sun offers a great way to know the time. Since it always moves at the same speed it can be used as…
Why Are There Seasons?
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The Earth rotates on itself about an axis which is inclined by about 23 ° 27 ‘with respect to the vertical. Why 23 ° 27 ‘? Because one day a…
The luminous ball that enlightens us during the day is actually a star like all the ones you can see at night in the sky, with the only difference that…
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The Earth attracts the Moon but the Moon, even if it is smaller, also attracts the Earth a bit. As the water that surrounds the Earth is light it moves…
Eclipse of the Moon
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About twice a year, the moon becomes orange for several hours. You can easily observe this phenomenon with the naked eye or with binoculars or a small telescope. What is…
Phases of the Moon
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You have an appointment with the Moon practically every day. It disappears from the sky only when it is facing the Sun. The Sun being located at the center of…
The Earth-Moon Couple
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Since the Moon turns on itself while moving around the Earth, a state of equilibrium has been established between the two stars and for billions of years the Moon always…