The last articles

What is Space ?
Published on 3 May 2022
by Matthieu Giroux

Space is a place where you can move into. Otherwise it would be nothingness. It may seem quite normal that we can move in space. But the fact that there is a vacuum in the universe does not necessarily mean that we can move. To move you have to live so be aware that you are moving. So space (...)

What is a Satellite ?
Published on 3 May 2022
by Matthieu Giroux

A satellite is an object or planet that orbits around a larger planet.

A lot of communication and mapping satellites have been placed around the earth. For some, these satellites can help fighting cyclones, as long as we want to slow down the cyclones.

Probes that travel through the solar (...)

What is the Starry Sky ?
Published on 3 May 2022
by Matthieu Giroux

When there is dark night we can see the starry sky. Otherwise, only the brightest star is seen, if there is no cloud.

The starry sky is the universe that you see at night. But we also know that there is a universe that we do not see. Indeed, the stars hide other stars. Really the universe is (...)

Using a Telescope
Published on 3 May 2022
by Matthieu Giroux

We can magnify the light that comes from the universe at night. It is even possible with some telescopes to look at the contours of the sun hiding it. But we should not look at the sun with the telescope because the light would blind, rather put a sheet outside the telescope. Attention to the (...)

What is the Solar System ?
Published on 3 May 2022
by Matthieu Giroux

The solar system is the nine planets and their moons that revolve around the sun. We don’t know how our solar system was formed.

Earth is the third planet in the solar system. As seen in the photo, it is small.

It was believed that the planets could not move around the stars. Indeed, there is (...)