Astronomers have discovered an Earth-sized planet orbiting a star similar to the sun, only 73 light years away. Previous studies using the Transiting Exoplanet Survey Satellite (TESS) had spotted two larger planets around the star in 2020; the new planet was discovered during follow-up observations designed to confirm the earlier findings. Astronomers have previously found Earth-sized planets around distant stars, but nearly all of those have been found orbiting smaller, cooler red dwarf stars instead of G-type main sequence stars like our sun. The relatively close nature of the new find also opens up opportunities to study the planet more...