Physicists Can Finally Explain How Sand in an Hourglass Can Suddenly Stop Flowing

Daily Telescope: The ambiguously galactic duo

Smartwatch AI predicts atrial fibrillation 30 minutes before it arrives

Video: How the Korean DMZ Works [21:51]

Mother trees and socialist forests: is the ‘wood-wide web’ a fantasy?

High-speed imaging and AI help us understand how insect wings work

You Can Now Visit Mussolini’s Underground Bunker in Rome

George Washington’s stash of centuries-old cherries found hidden under Mount Vernon floor

The barely visited US national park that requires a passport

Planet 9 could be lurking behind Neptune, study finds strong evidence

Your perception of time is skewed by what you see

Insatiable: A Life Without Eating

On this day in 1985 the Coca-Cola Company announced the reformulation of its flagship soft drink

Former NASA Engineer Says He’s Invented a Thruster That Doesn’t Require Propellant

NASA reveals ‘glass-smooth lake of cooling lava’ on surface of Jupiter’s moon Io

The bad and the ugly: AI is harmful, unreliable, and running out of data

The Moon brings a wild but precarious fish orgy to California’s beaches

Pupil Dilation Linked to Working Memory Capacity

Hydrogen trains could revolutionize how Americans get around

Why Measles Is So Contagious

Photo Contest Winners Give a Close-Up Look at the Beauty of Water

Single atoms captured morphing into quantum waves in startling image

Will We Know if TRAPPIST-1e has Life?

Rogue waves in the ocean are much more common than anyone suspected, says new study

‘We were in disbelief’: Antarctica is behaving in a way we’ve never seen before. Can it recover?

Britain’s mysterious WW2 ‘island of death’

NASA’s Voyager 1 Resumes Sending Engineering Updates to Earth

No one buys books

Boeing and the Dark Age of American Manufacturing

MIT’s New AI Model Predicts Human Behavior With Uncanny Accuracy

Belgian man whose body makes its own alcohol cleared of drunk-driving

‘I nearly fell out of my chair’: 1,800-year-old mini portrait of Alexander the Great found in a field in Denmark

Why is it so hard to send humans back to the moon?

The beach where people keep finding human bones

He masterminded an $86m art fraud — and doesn’t feel guilty

Video: This Chip Could Change Computing Forever [13:09]

Every New Memory You Make Causes Damage to Your Brain Cells

Uranus and Neptune aren’t made of what we thought, new study hints

Mexico Recovers Long-Lost Manuscripts About the Aztec Empire’s Rise and Fall

What Causes Hoarding? New Research Suggests It Can Start in Childhood

The Ingenuity Team Downloads the Final Data from the Mars Helicopter. The Mission is Over

You Can Actually Order Your Very Own Invisibility Shield Right Now

Devising a Test for Special Relativity

Saturn’s ocean moon Enceladus appears to have ‘ingredients’ to support life: Report

Like Moths to a Flame? We May Need a New Phrase.

Video: This Beaver Dam is So Huge, You Can See It from Space [7:42]

Weird magnetic ‘skyrmion’ quasiparticle could be used as a bit in advanced computing memory

This Crater Could Be Where Earth’s ‘Second Moon’ Broke Off The First One

Video: The Hunt for Ted Bundy [22:11]

How Portugal’s 1974 Eurovision entry toppled the country’s fascist regime

Long-lost model of the USS Enterprise returned to Roddenberry family

How many bathrooms have Neanderthals in the tile?

Mutated strains of an unknown drug-resistant bacteria somehow got onto the International Space Station

‘Like a film in my mind’: hyperphantasia and the quest to understand vivid imaginations

Southern Grasshopper mouse: The tiny super-predator that howls at the moon before it kills

World’s most powerful MRI machine captures first stunning brain scans

Video: Bizarre traveling flame discovery [14:33]

Video: The rise of the giant hailstones [03:01]

The 18th-Century Baron Who Lent His Name to Munchausen Syndrome

The Ukrainians Who Refuse to Fight