The discovery of a stellar system with seven planets of similar mass to the Earth represents a milestone in the search for life in space, and Google decided to celebrate it today with an animated recreation in which, through a telescope, you can observe the seven planets.
The system, located by an international group of astronomers and whose study has been published by Nature, has both the largest number of planets the size of Earth and the largest number of worlds that they could have liquid water on the surface.
The six planets closest to the star, probably rocky, can have a surface temperature of between 0 and 100 degrees, the range in which there can be liquid water, and three of them are in the so-called “habitable zone,” so they are especially promising candidates for life.
Just 40 light-years from Earth, the newly discovered planets revolve in flat, orderly orbits around TRAPPIST-1, an ultracool dwarf star with a brightness about a thousand times less than that of the Sun.
The new system is relevant for scientists because of its proximity to Earth in astronomical terms and because it is the first to have seven planets of a similar size to ours, as well as the small size of its star, a particularity that will simplify the study. of the climate and atmosphere of those worlds.