On a clear day, we can see that the sky of the Earth has an intense blue colour. But, what is the cause for theRead More
On our planet, there are volcanos, and supervolcanoes. The latter do not have a definition that everyone accepts, but what everyone agrees on, is thatRead 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
It can seem that dying due to the impact of a meteorite on the Earth is a very unlikely phenomenon. Nevertheless, it is estimated thatRead More
The asteroid belt is a zone situated between the orbits of Mars and Jupiter in which we find millions of asteroids of all sizes, whichRead More
As I’ve explained in the last articles, mega-constellations will be a problem to the progress of astrophysics and the detection of possible impacts against meteorites.Read More
The mega-constellation projects, like the ones of SpaceX, Amazon, Facebook, and many others, some of which are being put in service now, offer us someRead More
During the last years, astronomers have had each time more problems finding a place without light pollution, due to the cities. It is for thisRead More
During the last decades, we have lived an epoch in which many satellites have been put to orbit around the Earth. Many of them workRead More
