This study states (corrections if I am wrong) that there are plus or minus 80-billion-billion or 14-thousand-billion-billion terrestrial planets (similar to earth) orbiting around a sun with a friendly temperature that is an average age of 1.3 to 1.7-billion years-old.<p>The average galaxy they reside in has about twice the mass of the Milky Way and there are circling a sun just like the we are.<p>We need will a bigger James Webb telescope!