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Category: Galaxies

11 de June de 2023 / Galaxies, General, Universe

Why do galaxy nuclei contain black holes?

Since the 1960s we know that most galaxies contain a black hole in their centre. These black holes have masses in the order of millionsRead More

24 de April de 2023 / Galaxies, General

The Andromeda galaxy: our cosmic neighbour

The Andromeda galaxy, also known as M31, is a spiral galaxy located about 2.5 million light-years away from the Milky Way, making it the closestRead More

3 de December de 2021 / Galaxies, General

The galaxy formation. How does this process take place?

Galaxies are formed by billions of stars, dust, and other materials, bounded between them by gravity. These massive stellar bodies are present in many shapesRead More

28 de November de 2020 / Galaxies, General

How many stars are there in the Milky Way?

The Milky Way is our galaxy, where is situated the solar system, which is formed by 8 planets and its moons. However, the solar systemRead More

1 de July de 2020 / Galaxies

Our galaxy: the Milky Way

The Milky Way was formed approximately 13 600 millions of years ago, with a marge of error of approximately 800 millions of years. At theRead More

3 de May de 2020 / Galaxies

A next collision with Andromeda?

Many years ago, some measurements made by scientists with the help of the Hubble spatial telescope, indicated that the Milky Way and our neighbour’s, Andromeda,Read More

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Recent Posts: Cosmo Espai

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What is gravity?

Gravity is one of the fundamental forces of the universe. It makes us fall to the ground when we jump, and makes enormous gas cloudsRead More

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All particles that form matter around us, such as electrons, protons or neutrons, have equivalent versions of them in antimatter. The antimatter particles, or antiparticles,Read More

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Matter particles constitute almost everything we see in the universe. The atoms are formed by protons, electrons, neutrons, and more particles of smaller size. EvenRead More

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Why do galaxy nuclei contain black holes?

Since the 1960s we know that most galaxies contain a black hole in their centre. These black holes have masses in the order of millionsRead More

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Recent Posts

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  • What is antimatter?
  • Why do galaxy nuclei contain black holes?
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