Seven Perfect Shuffles Randomize a Deck of Cards. But How Many Sloppy Ones?
In 1992, mathematicians famously proved that seven “riffle shuffles” — the kind where a player splits a deck of cards into two piles, then uses
Category: Science
A deadly fungus that can infect cats and people is spreading
It’s just a matter of time before Sporothrix brasiliensis reaches the U.S. a CDC expert says.
A ‘Super El Niño’ may be on the way. What does that mean?
Past super El Niños have brought bad flooding, deadly fires and disease outbreaks. Climate experts already expect “shockingly high” temps this winter.
‘It’s a huge deal’: Archaeologists discover second cannonball from the Battle of the Alamo, and it was likely fired by Texans
Archaeologists have discovered a second cannonball from the 1836 Battle of the Alamo, and now they have one from each side.
‘A mixture from zero to infinity’: Physicists split apart a photon — and ended up with an improbable swarm of particles
Physicists have found that splitting a photon would lead to a complex state that may change the way we think of particles.
Oldest known plague victims found in a 5,500-year-old burial ground in Siberia — and many of them were children
The oldest known evidence of the plague killing people has been found in Siberia, and it carried a gene that may have made it particularly
Diagnostic dilemma: Viral infection caused woman not to recognize her own father
A woman could no longer recognize her father’s face and had trouble holding the details of faces in her mind’s eye.
Watch Venus vanish behind the moon in broad daylight today — without any special equipment
Today (June 17), the moon will pass between Earth and Venus, causing the hellish planet to temporarily disappear from the daytime sky. Here’s what it
Indonesia’s near-identical, ‘Twin Peaks’ volcanoes form striking mirror image — Earth from space
A 2021 astronaut photo shows the surprising similarities between Mount Sundoro and Mount Sumbing, which lie at the heart of Java, Indonesia.
‘The system is critically stressed’: San Andreas and San Jacinto faults scarily close to major earthquake, study finds
The San Andreas fault and a neighboring fault in Southern California have reached their highest levels of tectonic stress in 1,000 years, and a rupture
Elusive dwarf fox, feared extinct, photographed for the first time on island off Yucatán
The first-ever photos of a Cozumel fox prove that the mysterious island predator is still alive in Mexico but in dire need of conservation, according
Earth-based telescope shares image of Artemis II capsule near the moon — one of the farthest photos of humans ever taken
A blurry photo captured by the Green Bank Telescope in West Virginia shows Artemis II’s Orion capsule circling the moon more than 200,000 miles away
NASA seems to be backing away from hunting for life on Mars
Viking 1 kicked off the search for Martian life 50 years ago. Now NASA’s shifting priorities are putting the quest in limbo.
5,000-year-old burial of man with battered skull found in kiln in Germany — and he may have been a human sacrifice
An injured man from the Corded Ware culture was buried in a pit previously used as a kiln, and he may have been sacrificed.