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
Category: Universe
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
Neutrinos are subatomic and elementary particles, that to say, they can’t be divided into other, smaller particles. Another example of an elementary particle is theRead More
If we throw a stone in the air, it will fall another time due to the gravitational force of the Earth. If we throw itRead More
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
Asteroids and comets have things in common, but their differences aren’t few, and, distinguish between these two celestial bodies can lead to confusion. Composition TheRead More
Normally, we use anyone of these names indistinguishably. Even if they are very similar names, they all refer to different situations. In essence, these threeRead More
In the universe, there are many celestial bodies that emit light and others that reflect it. However, there isn’t only a single type of light,Read More
The fact that the space is black, is a thing that we know instinctively since the first time that we look to the night sky,Read More
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