The Universe, Stars and Galaxies

the universe
The stars are huge gas spheres that shine in the darkness of space. During clear nights we can see thousand of stars in the sky. All stars, along with the rest of the celestial bodies found in the sky are part of the Universe.

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The Universe, Stars and Galaxies

The stars are huge gas spheres that shine in the darkness of space. During clear nights we can see thousand of stars in the sky. All stars, along with the rest of the celestial bodies found in the sky, including the space that is found between them, forms part of the universe. Chemical reactions occur in stars releasing huge amounts of energy and this is why stars shine so brightly.

Galaxies are complexes formed by millions of stars that get closer to one another due to gravity. The galaxy which the Earth belongs too is called the Milky Way and it is also were the solar system is located as well as our planet. In the Milky Way there are more than 100.000 stars, among them our most important star, the Sun.

This is an educational video about the universe, stars and galaxies.

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