Capturing panoramas of the Milky Way, the galaxy in which we reside, might seem like a daunting task considering it is, according to the National Aeronautics and Space Administration, about 100,000 light-years across.But Finnish astrophotographer JP Metsavainio has spent almost 12 years stitching together 234 frames to create a mosaic of 125 degrees of sky. The panorama, which shows 20 million stars, captures the