The “burdensome” problem for the scientific community in describing a habitable zone is that scientists know little about where life forms, Marcy said.
“There’s a split brain that we scientists have right now. Half of our brain says there’s a habitable zone and it lies between a region inward of where the Earth is and a region outside the Earth’s orbit [for stars our size],” he said. “The other half of our brain knows perfectly well that excellent destinations for our search for life lie elsewhere in the Solar System.”
The Committee to Nuke Elysium 