"Earth-sized Planet with Lava Hemisphere Discovered"

Astronomers using NASA's TESS have discovered a young, Earth-sized exoplanet, HD 63433 d, in a planetary system with two known planets. The planet is tidally locked, with scorching temperatures on its dayside, possibly making it a "lava hemisphere." It orbits a star similar to our Sun and is the closest confirmed Earth-sized planet of its age, at about 400 million years old. This discovery provides valuable insights into planetary formation and evolution and will be discussed at the 2024 American Astronomical Society Meeting.