Disruptions of sleep are well known as migraine triggers, but now researchers have found a genetic link between the two. In studying families with lots of migraines, they also found a mutation on a gene that helps control circadian rhythms.
In a new book, The Anatomy of Violence, Adrian Raine argues that violent behavior has a biological basis just like depression or schizophrenia. This raises questions about treatment, accountability and punishment, including the death penalty.
An international team of doctors is helping Syrian health workers recognize the signs of a chemical attack. They're also teaching them how to collect and preserve tissues as potential evidence if war crimes charges are brought.
SpaceX calls it the "Grasshopper" — it's a rocket that doesn't fall back to Earth haphazardly after launch. It carefully returns itself to the launchpad standing up, right where it started.