Second Earth-sized World Found in System's Habitable Zone – Exoplanet Exploration: Planets Beyond our Solar System

TESS has Found A Second Earth-Sized World in This System. Exoplanet Science is Maturing - Universe Today

Is Earth the only Goldilocks planet?

NASA's Kepler Mission May Have Found Fewer Habitable Exoplanets Than Thought

Habitable zone - Wikipedia

TOI-700 e: NASA Discovers New Earth-Like World Around Distant Star

Astronomers discover a multiplanet system nearby, MIT News

Astronomers Discover 18 Earth-Sized Planets Beyond Our Solar System

NASA's Kepler Telescope Finds What May Be an Earth-Size Planet - The New York Times

Second potentially habitable Earth-size planet found orbiting nearby star

NASA exoplanet telescope discovers 'super-Earth' in its star's Goldilocks zone

Earthlike planet found in Goldilocks zone - Newsday