Aires Loutsaris built Reading Maps, a free interactive atlas charting 1,000+ literary journeys from The Odyssey to Mrs. Dalloway. Here’s what it reveals.

D.S.A. co-chair Megan Romer defends the organization’s boldest positions on the New Yorker Radio Hour, arguing voters want fighters, not hedgers.

Mount Toba’s eruption 74,000 years ago was a thousand times larger than Pinatubo, yet new sediment data shows it caused under two years of cooling and just half a degree of temperature drop.