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Tag: universe

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

26 de February de 2022 / General, Universe

The cosmological constant: Einstein’s greatest mistake

Despite the success Einstein had thanks to, among others, the theories of general and special relativity, Einstein rejected to accept the answer that came outRead More

18 de February de 2022 / Universe

How do we know the universe is expanding?

We have known for decades that the universe is in a process of accelerated expansion. This means that galaxies separate the ones from the othersRead More

29 de January de 2022 / General, Universe

What does the Big Rip theory propose?

Just like the Big Crunch and the Big Freeze, the Big Rip is a theory that speculates about how could the death of the universeRead More

21 de January de 2022 / Universe

The Big Freeze: the icy death of the universe

Throughout time, scientists have speculated about how could the death of the universe be. With our current knowledge of the universe, we have been ableRead More

14 de January de 2022 / Universe

Why is the night sky dark?

This is a question that many astronomers have asked themselves for more than 400 years. However, we owe the official formulation of this paradox toRead More

7 de January de 2022 / Universe

The Big Crunch: When all will come back at the beginning

The Big Crunch, just as the Big Freeze or the Big Rip, which I will talk about in next articles, is a theory that speculatesRead 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

2 de April de 2021 / Universe

The units of measurement that we use in astronomy

The distances in the universe are so big, that not even the biggest measures that we use in the International System, are useful to usRead 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

All about the Dragon capsule, from SpaceX

All about the Dragon capsule, from SpaceX

Dragon is a partially reusable spacecraft developed by the American aerospace company SpaceX. This capsule is capable of carrying 7 astronauts on missions to andRead More

The New Glenn rocket, from Blue Origin

The New Glenn rocket, from Blue Origin

Blue Origin is an aerospace enterprise founded in 2000 by Jeff Bezos, founder of Amazon. Apart from offering manned suborbital flights to space, the companyRead More

The New Shepard, a rocket for space tourism

The New Shepard, a rocket for space tourism

The New Shepard is a rocket manufactured by Blue Origin, an aerospace enterprise founded in 2000 by Jeff Bezos, CEO and founder of Amazon. ThisRead More

The effects of the solar wind on the Earth

The effects of the solar wind on the Earth

The solar wind is a continuous stream of particles, mainly very energetic protons and electrons that come from the most superficial layer of the SunRead More

What is the solar wind made of?

What is the solar wind made of?

The solar wind is a continuous stream of very energetic particles coming, as its name indicates, from our star. On Earth, the solar wind isRead More

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