



The new planet orbits a star named GJ 357, an M-type dwarf about one-third the Sun's mass and size and about 40 percent cooler that our star. The system is located 31 light-years away in the constellation Hydra.





In February, TESS cameras caught the star dimming slightly every 3.9 days, revealing the presence of a transiting exoplanet - a world beyond the solar system - that passes across the face of its star during every orbit and briefly dims the star's light.

Los Angeles - Nasa's Transiting Exoplanet Survey Satellite (TESS), a mission designed to comb the heavens for exoplanets, has discovered its first potentially habitable world outside the solar system, according to a Nasa release on Wednesday.