Miami: Astronomers hunting for another Earth have found what may be the closest match yet, a potentially rocky planet circling its star at the same distance as the Earth orbits the Sun, NASA said today.

Not only is this planet squarely in the Goldilocks zone -- where life could exist because it is neither too hot nor too cold to support liquid water -- its star looks like an older cousin of our Sun, the US space agency said. That means the planet, which is 1,400 light-years away, could offer a glimpse into the Earth's apocalyptic future, scientists said.