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Second potentially habitable Earth-size planet found orbiting ... - CNN
Scientists have discovered a theoretically habitable, Earth-size planet
Kepler-452b - Wikipedia
NASA Planet Hunter Finds its 1st Earth-size Habitable-zone World
Second Earth-sized World Found in System's Habitable Zone
NASA’s Kepler Mission Discovers Bigger, Older Cousin to Earth
Earth-Size, Habitable Zone Planet Found Hidden in Early NASA …
The discovery of a new Earth-like planet could shed further light …
Nasa announces discovery of 'second Earth' in deep space
Newfound alien planet may be most Earth-like yet | Space