Lightning is awesome and today the Department of Awesome Natural Phenomena presents a form of lightning we'd never heard of before: blue jet lightning. This is a form of upper-atmospheric lightning, believed to be electrically induced forms of luminous plasma. It's also known as a transient luminous event (or TLE) because the various types of electrical-discharge phenomena in the upper atmosphere lack several characteristics of the more familiar tropospheric lightning.
From Laughing Squid:
The recently discovered sauropod dinosaur Dreadnoughtus schrani is one of the most complete skeletons ever found of such a large animal. As more research is being done its true scale is coming into focus. A diagram by BBC News shows how the Dreadnoughtus compares in size and weight to other dinosaurs, animals, and even a Boeing 737-900 airplane.