Back at this again and feeling like Christopher Columbus
Earth Similarity Index (ESI) is one way to look at it. Then you wonder about a
What will that 2028 satellite discover? What would we discover on a Super Earth?
Imagine it being populated with various races of semi-intelligent kangaroos. Most of them are at war and ritualistically bounce each other into kangaroo-flapjacks, leaving only the head unflattened, which they religiously keep in their pouches for some weeks as a souvenir. We decide to genocide these creatures and their savage practices. Centuries later, our Armstrong-Columbus statues are vandalized by some of the ones we left alive and their sympathizers. Pragmatic solution- leave no survivors.