TRAPPIST-1e

TRAPPIST-1e is considered one of the most promising candidates for habitability within the TRAPPIST-1 planetary system. It orbits comfortably within the star's habitable zone, where temperatures could theoretically allow for the existence of liquid water. Scientists are actively using instruments like the James Webb Space Telescope to study its atmosphere for potential biosignatures.

TRAPPIST-1e orbits an ultra-cool red dwarf star designated as TRAPPIST-1. This M-dwarf star is significantly smaller, cooler, and less massive than our own Sun. Because the star is so dim, the planet's year is very short, completing an orbit in just about six Earth days.

The TRAPPIST-1 system is located approximately 40 light-years away from Earth in the constellation of Aquarius. While that is relatively close in astronomical terms, it is still far too distant for current human spaceflight technology to reach. It was discovered by the TRAnsiting Planets and PlanetesImals Small Telescope (TRAPPIST) in Chile.

TRAPPIST-1e is an Earth-sized exoplanet with a radius roughly 0.91 times that of Earth's. It is also slightly less massive than our planet, possessing about 69% of Earth's mass. These figures indicate it is likely a dense, rocky world with a solid, terrestrial surface.