#OTD in 2009, our Kepler space telescope launched to detect planets outside our solar system. Kepler retired in 2018 and passed its planet-hunting torch to our TESS mission. Keep up with the search for exciting new worlds: https://science.nasa.gov/exoplanets/ | NASA Universe

Astronomers have just uncovered a giant alien planet hiding in a known star system — Kepler-139f. It’s 35 times more massive than Earth and managed to stay undetected until now. Using advanced techniques like transit timing variations and radial velocity, scientists finally exposed this massive world lurking in the shadows. Could there be even more hidden planets out there? | The Brain Maze