When a coffee stain dries, its edges become noticeably darker and thicker, while the middle of the stain remains almost unsoiled.
Pristine material that matches comets in our own solar system have been found in a dust belt around the young star Beta Pictoris by ESA’s Herschel space observatory.
Day in Pics: 24th December
Showbiz World - December 24, 2014
Sunny Leone with Mastizaade