NASA’s planet-hunter satellite ‘TESS’ has discovered an Earth-sized world, which could have the presence of liquid water. Habitable zone means it is not too cold and not too hot and just right for living conditions. The potentially habitable planet, named ‘TOI 700 d’ is relatively close to Earth. TOI 700 d is about 20 percent larger than Earth and orbits its star in 37 days. It receives 86 percent of the energy that Earth receives from the Sun.