Astronomers estimate that there are 200 to 400 billion stars in our galactic neighborhood, the Milky Way. I guess that someone tried to count them in this fully-zoomable, ultra-high-definition 800,000-image mosaic and got tired around 296,351,284,702.
NASA's planet-finding Spitzer Telescope has picked up infrared light in a pattern that suggests a giant lump of material is forming in an otherwise smooth disk of debris around a star. Is somebody building an Orbital?
Using data from NASA's Spitzer Space Telescope, Dr Massimo Marengo—from the Harvard-Smithsonian Centre for Astrophysics—and Dr Dana Backman—from the SETI Institute—are claiming that there's a solar system which is a younger twin of our own, just 10.5 light-years from us. Nothing surprising, really, until they tell you…