Colombian astronomers have discovered what they call a "comet graveyard" in the main asteroid belt between the orbits of Mars and Jupiter, and even describe how some of the dormant slabs of rock and ice can "come back to life."
The Evolution of Chris Christie He was once the establishment candidate. Now he’ll be whatever it takes to stay in the race.
The XX Factor
This Drug for Binge-Eating Disorder May Be Shady. That Doesn’t Mean the Disease Isn't Real.
Why It’s Slatesters, not Slate-sters Overheard on email: Slate’s copy desk rounds up its February style and grammar rulings.