But this new candidate planet, dubbed HD 137010 b, is an especially promising detection that hints at a habitable world that in many ways appears to mirror our own. As detailed in a new study published in The Astrophysical Journal Letters and highlighted by NASA, the rocky outpost orbits a Sun-like star and is nearly the same size as Earth. Its orbit is almost a carbon copy, too, equal to around 355 Earth days. The big and obvious difference between our star system and the candidate exoplanet’s is the star itself. That means the candidate exoplanet potentially receives less than a third of the light and heat that the Earth does, with estimated temperatures lower than minus 90 degrees Fahrenheit.