All coverage
James Webb Telescope finds its first exoplanet
By Denise Chow
NASA's Webb telescope has discovered its first exoplanet
By Ayana Archie
NASA has discovered an Earth-sized planet orbiting in the habitable zone of its star
By Caitlin O'Kane
NASA finds Earth-size planet that could be habitable: ‘An exciting prospect’
By Brooke Steinberg
James Webb Space Telescope discovers its first exoplanet
By Ashley Strickland
The Webb Telescope's first confirmed exoplanet is 99 percent the diameter of Earth
By Andrew Tarantola
NASA's TESS Discovers Planetary System's Second Earth-Size World
By Jeanette Kazmierczak
2 Earth-size worlds revealed beyond our solar system
By Ashley Strickland