Astronomers have identified a rare exoplanet, Gliese 12 b, located just 40 light-years away and classified as an “exo-Venus”. It is between the size of Earth and Venus and orbits its red dwarf star every 12.8 Earth days. The planet’s temperate nature, similar to Earth’s, makes it an ideal target for studying planetary atmosphere development. Researchers aim to determine if Gliese 12 b has an atmosphere and if it resembles Earth’s or Venus’s dense atmosphere, which will shed light on the divergent evolution of these two planets.