Next stop, Mars? Well, not quite, but a new estimate puts the price tag for a potential manned mission to Mars at a much easier-to-stomach $80 billion to $100 billion. That's a far cry from the oft-repeated–and absurd–cost of $1 trillion.
Patty Murray Should Be the Next Senate Minority Leader The Washington senator is a better choice than Elizabeth Warren or Chuck Schumer.
Inside Higher Ed
Fighting Words? A professor compared Hamas to a rabid pit bull. Free speech couldn’t protect him from student vitriol.
What Happened at Slate This Week? Alison Griswold describes her experience reporting on the Germanwings tragedy.
Even Lufthansa’s Exhaustive Psychiatric Tests Couldn’t Have Stopped a Tragedy Like the Germanwings Crash