Prepare Your Observation of The Sky
If you want to observe the sky with the naked eye and recognize the constellations or even observe the sky with the telescope, …
Showing posts with label ASTRONOMY. Show all posts
Showing posts with label ASTRONOMY. Show all posts
What do We See During the Night?
During the night you will not only see stars in the sky but many other objects: The Moon: every month, for about 25 days, the M…
The Fall of Meteorites
In the past it has happened that some meteorites are so big and so heavy that they violently hit the Earth forming huge craters…
Shooting Stars and Meteorites
Most asteroids orbit very far from the Earth, between Mars and Jupiter. Some debris however or dust released by the tail of com…
Tuesday, August 24, 2021
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Comets
From time to time we see comets in the sky. Like asteroids, they are large, dusty, icy rocks several hundred meters long and a …
August 24, 2021
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The Blue Planet
Neptune is invisible to the naked eye. It was discovered in 1846 by Urbain Le Verrier because something disrupted the orbit of …
Red Planet
The last telluric planet, the 4th of the solar system is Mars, nicknamed the Red Planet because of the color of its surface or …
How to observe the sun?
If you want to observe the Sun, ask your parents for help to observe it safely. You can never observe the Sun directly, whether…
The Moon Tides
The Earth attracts the Moon but the Moon, even if it is smaller, also attracts the Earth a little. As the water around the Eart…
Astronomy and Space Professions: Astronaut
It is called “astronaut” in Europe and “cosmonaut” in Russia but these words mean the same thing. The job of astronaut is certa…
Astronomy and Space Professions: Astronomer
They tries to understand the universe, how planets, stars and galaxies are formed; analyzes the light of variable stars or quas…
The Death of the Universe
Finally, there remains one last question: how will the universe end? We know now that it started very small and very hot and that…
How to Recognize the First of the Last Quarter of Moon?
In the northern hemisphere, when the moon is growing, in the first quarter you can write a P with the shape of the Moon. In the…
Why Does the Sun Seem to Go Up and Down in The Sky?
Like everyone else, you have seen the Sun move in the sky during the day following an arc. In reality it is an illusion because…
The Quasar
Visually, the quasars look like bluish stars a little blurry but unlike the stars, they are among the farthest objects in the u…
Deep in the Cosmos
Our galaxy, the Milky Way, is isolated in space but it is not alone. The galaxy closest to us is Andromeda, M31. It is 2.5 mill…
Clusters of Galaxies
Galaxies contain tens or hundreds of billions of stars like the Sun and all this mass attracts nearby galaxies. They gather in …
The Black Hole, a Collapsed Star
A black hole is a very special star. It’s a dead star that has collapsed on itself and ends up measuring only a few kilometers …
The Birth of a Star
The Sun as well as all the stars that you see in the sky are born in a huge cloud of gas and dust whose center denser and hot h…
The Birth of the Universe
After many calculations and experiments in physics laboratories, it is believed that at the beginning of time, the universe was…
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