Exoplanet Earth: An Ultimate Selfie to Find Habitable Worlds

Twenty-five years after we discovered the first world orbiting another star, our exoplanet catalog numbers 4,301 and climbing. However, only about 51 exoplanets have been truly “seen.” This small collection of directly imaged worlds comprises a variety of stellar objects, from failed stars known as brown dwarfs to young Jupiter-like gas giants to […]