This is “Kepler-186f ” and here’s why scientists think it’s habitable

facts/gk on Instagram: "A new video shows the evolution of Kepler’s Supernova Remnant captured over more than two and a half decades. Supernova remnants, the debris fields left behind after a stellar explosion, often glow strongly in X-ray light because the material has been heated to millions of degrees from the blast. The remnant is located in our galaxy, about 17,000 light-years from Earth, allowing Chandra to make detailed images of the debris and how it changes with time. This latest video