In this book Marcus Chown and Govert Schilling address the very biggest questions in tweet-sized answers.
For the most part, the 140-character restriction leads them to a matter-of-fact style ("How do we know there was a Big Bang? Universe expanding, so must have been smaller in past") but there is something poetic about other entries ("Centre of galaxy is a place of extreme violence. Great tsunamis of interstellar gas collide"). The authors have been caught between two stools: Tweeting the Universe lacks both the flexible, interactive nature of a twitter feed and the long-form development of argument provided by a traditional science book. But you can't help but admire the concision.Reuse content