快猫短视频

You might have wondered, looking up at the night sky, how many other beings are out there looking back at us. Help is at hand. Using data from NASA鈥檚 Kepler Space Telescope, 快猫短视频 has made an .

The grid of squares to the right represents the patch of sky that Kepler stared at for nearly four years. So far, the space telescope 鈥� nicknamed the Planet Hunter 鈥� has confirmed the existence of 151 exoplanets and identified more than 3500 strong candidates.

Now, using what we know from Kepler, and simulations from its data by and of the Harvard-Smithsonian Center for Astrophysics in Cambridge, Massachusetts, 快猫短视频 has estimated and mapped the density of habitable worlds across the whole sky. Given that the Milky Way is thought to contain between 100 and 200 billion stars, our best estimate of the total number of such planets in our galaxy is 15 to 30 billion.

鈥淭his illustrates the wow factor emerging from the Kepler mission,鈥� says of the SETI Institute in Mountain View, California, who wrote the software that analyses the Kepler data. 鈥淭he galaxy is just full of potentially habitable planets.鈥�

How many of these worlds harbour life? We don鈥檛 know, but if we are alone in our galaxy, it鈥檚 not for a lack of accommodation.