A mystery illness killed a boy in 1969. Years later, doctors learned what it was: AIDS.

Beresheet Crash Site Spotted

Video: ‘Serial Killers Are a Uniquely American Phenomenon’

‘Wood wide web’—the underground network of microbes that connects trees—mapped for first time

Definition of kilogram, amp, and kelvin set to change forever

Peacock spiders’ superblack spots reflect just 0.5 percent of light

Why this insect fakes death to avoid sex

Humans Crawled Through a Cave 14,000 Years Ago. We Can Still See Their Perfectly Preserved Footprints.

The Concept of “Race” Is a Lie

Something Strange Punched a Hole in the Milky Way. But What Exactly Is It?

From the Lunar Far Side, China’s Rover Reveals Moon’s Hidden Depths

Striking Down the Queen Won’t Save You From the Swarm

Cambridge scientists create world’s first living organism with fully redesigned DNA

A Trove of ‘Lost’ New York City Crime Scene Photos, Unearthed After 82 Years

The Font Detectives

Boredom in the mating market: Guppies demonstrate why it’s good to stand out

Arsenic-Breathing Microbes Found In The Open Ocean

Microsoft’s First Windows XP Patch in Years Is a Very Bad Sign

Researchers develop viable, environmentally-friendly alternative to Styrofoam

We’re just beginning to grasp the toll of the Islamic State’s archaeological looting in Syria

Cars will change more in the next decade than they have in the past century

A little-known parasite infects 300,000 people in the U.S.

Long-lost “tasty genes” could soon be spliced back into store-bought tomatoes

Underground Photos From New York’s Seediest Years

Another Yellowstone Geyser Has Just Rumbled To Life After Years Of Quiet

Study reveals children near lead smelters are exposed to dangerous lead in the womb

‘One of the strangest cases’: A dead professor, a hot tub and a suicide baffle police

Can CBD Really Do All That?

From a forest to a swimming pool: 12 architects’ proposals to rebuild Notre Dame

Mireya’s Third Crossing

‘It would destroy it’: new international airport for Machu Picchu sparks outrage

[Debunked claim]: Bristol academic cracks Voynich code, solving century-old mystery of medieval text

The ‘3.5% rule’: How a small minority can change the world

Primal Fear: Can Monkeys Help Unlock the Secrets of Trauma?

Life for this Bavarian princess was no fairy tale

How Upton Sinclair’s 1934 run for governor of California inspired a cult

The trickster microbes that are shaking up the tree of life

Your Brain Stops Time When You Blink

How Feynman Diagrams Revolutionized Physics

‘A little miracle’: Dutch statesman’s diary found 200 years after it was lost

Making Playgrounds a Little More Dangerous

The Curious Life of Howard Hughes

Tweaking one gene with CRISPR switched the way a snail shell spirals

Study suggests imprisonment does not deter future crime

Simulating Evolution to Determine the Fastest Wing

Image: Animated weather map of an alien world (asteroid Bennu)

Entrepreneurs are thriving along the West Texas “Death Highway”

Is the brain parasite Toxoplasma manipulating your behavior, or is your immune system to blame?

The Curious History of Crap—Human, Animal, and Chemical

Invasion of the stink bugs: how a tiny insect roils global communities

The director Stacy Title is paralyzed and cannot speak. But she is determined to make one final movie.

The complicated business of selling the NYPD logo

Harassment Led to Murder on the Appalachian Trail

WhatsApp flaw let hackers install spyware on cellphones when people made or got calls

The Navy’s probe into sky penis

Interactive: Going Critical

Neurofeedback can zap your fears — without you even knowing

How Salt Made Our IQs Go Up

Why Apollo 10 Stopped Just 47,000 Feet From the Moon

The boy in the photo