None of the 700 million trillion planets in our known universe are similar to Earth

None of the 700 million trillion planets in our known universe are similar to Earth | Daily Mail Online: "There are believed to be 700 million trillion terrestrial planets in the known universe. Scientists have long believed that among them are worlds similar to our own. This is known as the 'Copernican principle', which states that our planet doesn't hold a privileged position in the cosmos"