The New Scientist has created a fascinating interactive that extrapolates from the results of NASA's search for possible life bearing planets near the constellation Cygnus.
NASA's Kepler infinite telescope discovered 51 planets that are the correct size to deport life too appear to orbit inwards the habitable zone some a raise star. However Kepler tin entirely discovery planets that drib dead straight betwixt the planet's Sun too the telescope. The New Scientist interactive extrapolates for the in all probability missing worlds too arrives at a possible 22,500 planets that be inwards this relatively pocket-sized corner of the galaxy near Cygnus.
The New Scientist thence extrapolates from that figure to practice a map of the Galaxy amongst billions of possible life bearing planets. How Many Earths? Influenza A virus subtype H5N1 lot!