"The implication of this is that worlds of all ages are out there, and the average planet is going to be billions of years older than our own," he told HuffPost in an email. "Complex, thinking beings required 4 billion years of evolution on Earth. If clever creatures always take a long time to appear, then older planets might be preferred hunting grounds for signals that could tell us someone?s out there.?
"It is not clear that planets much older than the Earth have a higher expectation of having life than the more recently formed planets," William Borucki, a space scientist at the NASA's Ames Research Center in Moffett Field, Calif told HuffPost in an email. "The discovery of Kepler-444 is important, but whether it implies advanced life or no life will remain a mystery until our technology advances to the point that we can get a definitive answer."
"There are far-reaching implications for this discovery," Dr. Tiago Campante, a research fellow at the University of Birmingham and one of the astronomers who helped discover the new system, said in a written statement. "We now know that Earth-sized planets have formed throughout most of the Universe's 13.8-billion-year history, which could provide scope for the existence of ancient life in the Galaxy."
Super-Ancient Solar System Sparks New Thinking About Search For Alien Life