Aides for Marco Rubio and Rand Paul's campaign scuffled in a Michigan bar on Thursday. American political history is littered with other similar confrontations.
Research on fruit flies with different types of insomnia has revealed the same brain pathways that interfere with sleep in people. The result may be better sleeping pills that don't leave you groggy.
Scientists spent decades arguing that women weren't suited for space travel because of menstruation. Even now, a lot of us are wondering how astronauts manage that time of the month.
After days of intense debate, the controversial security bills were approved allowing the Self-Defense Forces to be deployed overseas for the first time since World War II.
The announcement is welcome news for political campaigns, which all want to make it as seamless as possible for supporters to turn over their money and personal information.