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Category: Stars

7 de May de 2023 / Stars

How do stars produce energy?

The Sun, our closest star, is crucial for the presence of life on the Earth, thanks to the light and heat that it emits. TheRead More

13 de November de 2022 / Planets, Stars, Universe

What is the habitable zone of a star?

The discovery of a similar planet to the Earth would generate a great impact and interest, especially if this planet could be habitable. But, whereRead More

15 de October de 2022 / General, Stars

How long would it take to travel to the closest star?

Leaving aside the Sun, the closest star to the Earth is Proxima Centauri. This star belongs to a stellar system named Alpha Centauri, formed byRead More

9 de October de 2022 / General, Stars

Which is the closest star to the Earth?

Naturally, the closest star to the Earth is the central star of our solar system: the Sun. Our star belongs to the yellow dwarf categoryRead More

8 de April de 2022 / General, Stars

Why do stars appear in different colours?

Throughout history, humanity has looked to the stars with admiration. At a first glance, most of them appear white. Some centuries ago, most scientists thoughtRead More

1 de October de 2021 / Stars

What are neutron stars? Their formation and characteristics

When a supermassive star explodes as a supernova, its nucleus collapses and is converted into an ultra-dense celestial body. It is thought that in theRead More

24 de September de 2021 / Stars

The white dwarfs, stellar vestiges

The future of a star is determined by its mass. The most massive stars have a very violent death, exploding as supernovae and converting consequentlyRead More

23 de July de 2021 / General, Stars, Universe

Is life possible around red dwarfs?

Our universe is populated by many types of stars. Each type of star has a different colour, and their life varies from some million yearsRead More

4 de June de 2021 / Stars

Light takes about 170 000 years to get out of the Sun

Because of the enormous gravity that there is in the centre of the Sun, this one reaches to fuse hydrogen atoms, creating, as a result,Read More

11 de December de 2020 / General, Stars

Stephenson 2-18, the biggest star known in the universe

In the universe there is an enormous quantity of stars, which, between them, the most part of these last, are of a type named “redRead More

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Recent Posts: Cosmo Espai

How To Travel to the Future Without Breaking the Laws of Physics

How To Travel to the Future Without Breaking the Laws of Physics

The truth is that we are all travelling in time at every moment! And we do it at a constant rhythm of 1 second perRead More

What is gravity?

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

Why is there more matter than antimatter in the universe?

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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

Recent Posts

  • How To Travel to the Future Without Breaking the Laws of Physics
  • What is gravity?
  • Why is there more matter than antimatter in the universe?
  • What is antimatter?
  • Why do galaxy nuclei contain black holes?
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