An article published in the journal “Nature Astronomy” describes a research into the possible migration of the orbits of the 7 planets of the ultra-cool dwarf star TRAPPIST-1’s system and their composition. A team of researchers from Arizona State University (ASU) and Vanderbilt University put together the information available on that system to perform a series of calculations concluding that the planets formed much farther away from their star from their current positions and that some of them have a very high water content, paradoxically too much for them to be habitable.