In order to be able to talk about exomoon, we must first talk about what an exoplanet is.
An exoplanet are all those planets that are not orbiting around the sun, therefore, , the exomoons would be the moons of the exoplanets, but to date no clear evidence has been found about its existence, although statistically the possibility that they exist is very large.
Although recent discoveries have been made regarding the exoplanet Kepler-1625b, located about 4000 light years from our planet, it is speculated that this planet has an exo-moon, so it would be the first that has been discovered, they gave the name of: Kepler-1625b I.
Considering that a discovery like this is of great importance for the obtaining of information on the universe, the investigations in this exoplanet have intensified.
Some are wondering: How is the detection of an exoluna?
All this is the work of astronomers by the search for temporary decrease in the brightness of a star, indicating that a planet has traveled around, this procedure is done in the same way with the exoplanets, but with exolunas the procedure is more difficult, one of the cases is that the planets are smaller than their stars therefore do not emit light, rather they reflect it giving a less luminosity.
The exoplanet Kepler-1625b has presented 3 alterations in its brightness, reason why it is speculated that could have a exoluna, although all this is still pure speculation and we can not even imagine the size that can have this satellite where it is possible that it is as big as Mars or our own planet.
Although a discovery like this would be one of the best news as far as scientific field is concerned, , the truth is that the data obtained are not yet accurate enough to be able to affirm once and for all the discovery of the first exoluna, but we must have patience since this type of research consists of time and dedication.
