How Old Is the Grand Canyon?Depends who you ask.
How Can a Blood Test Tell if You're Schizophrenic?The new method could launch within 18 months.
Supreme Court Dispatches
High Drama for Obamacare at the High Court Scalia and Kagan are feisty; Kennedy gives hope to people who care about affordable care.
How Clinton Responds to Questions About Her Email Will Tell Us How a Clinton White House Would Operate
Slate Voice: “Shag the Dog” Listen to Will Saletan read his 2001 essay about the merits of zoophilia.