NASA’s Transiting Exoplanet Survey Satellite, better known as TESS, made an early discovery of “super-Earth” and “hot Earth” planets in solar systems at least 49 light-years away, marking the satellite’s first discovery since its April launch. The spacecraft launched from NASA's Kennedy Space Center in Cape Canaveral, Florida, on April 18 aboard a SpaceX Falcon 9 rocket and used a flyby of the Moon on May 17 to head toward its science orbit. TESS works by watching thousands of nearby stars in the Milky Way, looking for signs of planets transiting them – miniscule dips in the stars’ brightness can give away the presence of an orbiting planet momentarily passing in front of them. Based on the planet’s radius it’s likely a mini-Neptune with a gaseous hydrogen and helium atmosphere, says Hugh Osborn, an exoplanet researcher at the Marseille Astrophysics Laboratory in France. According to Gizmodo, in the preprint paper of their new study, the authors note that the TESS Space Telescope is already keeping its promise with its recent discovery.
NASA discovers its first exoplanet via the Transiting Exoplanet Survey Satellite space telescope. Pi Mensae c, a small Earth-like exoplanet, is located nearly 60 light-years away from Earth.