Why We Shouldn’t Call Exoplanets ‘Earth-like’ Just Yet

Every time astronomers discover another exoplanet, the first question is,”Does it look like Earth?” Finding an Earth-like exoplanet would certainly increase our chances of finding life, as we know it, on that distant world. We could finally prove that we’re not all alone in this big, cold universe.

But, when we see planets described as Earth-like, we should be skeptical. With our current instruments, it’s hard for us to even find other planets out there (although it’s gotten much easier),

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