How many things do we still not know about our galaxy? The fact is that this universe is full of mysteries that are slowly coming to light thanks to the development of technology. Now, NASA’s James Webb Space Telescope has discovered something surprising, an exoplanet they have called GJ 1214 b, which is located 48 light years from the constellation Ophiuchus, has been classified as a sub-Neptune due to its size (intermediate between Earth and Neptune if we compare it) and has hundreds of scientists who have been observing this exoplanet for more than a decade due to its composition, are going to tell you below what we know about this great discovery!