Researchers found that “wobbles” in the planet’s core have both sped up and slowed down our days by about a tenth of a millisecond.
Hillary’s Bubbles Why Clinton’s longtime friends and confidants pose a special challenge for her presidential ambitions.
The XX Factor
Duggar Revelations Are Just the Latest Sex Abuse Scandal to Rock Far-Right Fundamentalism
What Happened at Slate This Week? Assistant interactives editor Andrew Kahn on the best of Slate, from the history of slavery to Mad Men.
How Things Break Ali fought Liston 50 years ago. Two legends were born, but another was broken.