A ‘cold Earth’ exoplanet just 146 light-years away might be in its star’s habitable zone — if it exists
A possible rocky exoplanet referred to as a ‘cold Earth’ that could orbit on the outer edge of the habitable zone has been found around a star 146 light-years away. Known as HD 137010b, the exoplanet is considered at this stage to be a candidate world, meaning that its existence has yet to be confirmed.