Temperatures measured in a volcanic cloud generated by the eruption of the Indonesian volcano Anak Krakatau plummed to chilling −112°F.

An agency tasked with tracking future bio threats fell down on the job, causing us to wonder what else we don’t know.
Billionaire CEO told employees to ‘tighten their belts’.
The most common materials in the world, including plastic, steel, glass or wood have distinct molecular and chemical properties that give them intrinsic qualities, such as strength, flexibility or transparency. But an entirely different class of materials, called metamaterials, are coming onto the scene.
Artificially engineered, these materials have unique geometries and physical structures that can manipulate any mechanical or electromagnetic wave that passes through them. Metamaterials can perform a host of futuristic tricks; they can absorb sound waves to produce silence, bend light to create an invisibility cloak and dampen seismic waves to safeguard a building against an earthquake.
Metamaterial applications are numerous, but here are five of the coolest.