"This is the first one where we actually know it's rocky," Charbonneau said. "We found a planet that we can actually study that might be actually Earth-like."
Another nearby planet found that may be just right for life →
Despite the differences, "now we can point to a star and know that there really is a planet very similar to the Earth, at least in size and temperature," Harvard scientist David Charbonneau, who was not part of the team, said in an email.
Astronomers spot most Earth-like planet yet →