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Trillions Upon Trillions of Viruses Fall From the Sky Each Day

Trillions Upon Trillions of Viruses Fall From the Sky Each Day

Viruses attached to a fragment of a bacterial cell wall. “Viruses modulate the function and evolution of all living things,” scientists wrote last year. “But to what extent remains a mystery.”

The F.B.I. and the Mystery of the Mummy’s Head

The F.B.I. and the Mystery of the Mummy’s Head

This mummified, severed head was recovered from an ancient Egyptian tomb in 1915. Scientists needed to collect DNA to figure out whom the head belonged to.

At 12, He Had a Viral Science Video. At 14, He Fears He Was Too Rude.

At 12, He Had a Viral Science Video. At 14, He Fears He Was Too Rude.

Marco Zozaya in March near his home in Mexico. He aspires to be a science communicator like Neil deGrasse Tyson, but faces the conundrum of internet audiences and algorithms that may prefer drama over scientific information.

Ancient Burial Pits Reveal Sophisticated Rituals

Ancient Burial Pits Reveal Sophisticated Rituals

Stone pendants and earrings recovered from the Lothagam North Pillar Site in Kenya, which is about 5,300 years old. It was used as a burial site for about 700 years. Then, abruptly and mysteriously, the burials stopped.

There’s No Place Like Home, Especially if It’s Made of Hemp

There’s No Place Like Home, Especially if It’s Made of Hemp

Russians sorting raw hemp fibers in the Kursk region in the 1960s. Hemp has been used as building material for millennia in Europe and elsewhere, but it’s only just starting to get wider recognition as a green construction option.

The Lost Dogs of the Americas

The Lost Dogs of the Americas

A 10,000-year-old dog from an archaeological site near Eldred, Ill., known as the Koster site, where the earliest known dogs in the Americas were found.

NASA Names Astronauts for Boeing and SpaceX Flights to International Space Station

NASA Names Astronauts for Boeing and SpaceX Flights to International Space Station

The astronauts named by NASA to fly on commercial spacecraft made by Boeing and SpaceX to and from the International Space Station: From left, Sunita Williams, Cmdr. Josh Cassada, Eric Boe, Lt. Col. Nicole Mann, Christopher Ferguson, Douglas Hurley, Col. Bob Behnken, Col. Mike Hopkins and Cmdr. Victor Glover.

States Confront the Spread of a Deadly Disease in Deer

States Confront the Spread of a Deadly Disease in Deer

Game warden Keith Knighton, left, with a buck shot by Brodie McDonald during a special hunt to check for chronic wasting disease in deer in Montana last month.

Largest King Penguin Colony in the World Drops by 90%

Largest King Penguin Colony in the World Drops by 90%

The colony of king penguins on the Île aux Cochons, or Pig Island, in 1982, when researchers last counted its population.

How a Church Deacon Found the Biggest Prime Number Yet (It Wasn’t as Hard as You Think)

How a Church Deacon Found the Biggest Prime Number Yet (It Wasn’t as Hard as You Think)

Jon Pace is the discoverer of the largest known prime number, 23.2 million digits long.

How Cockroaches Crash Into Walls and Keep Going

How Cockroaches Crash Into Walls and Keep Going

Scientists found that the tough exteriors of cockroaches help them keep moving without losing much momentum when they bump into things.

A Long, Frozen Rescue and Sharks on Twitter

A Long, Frozen Rescue and Sharks on Twitter

A helicopter from the nearby Chinese icebreaker Xue Long arrived to pick up the first batch of passengers from the stranded Russian ship Akademik Shokalskiy.

Technique Used to Find Golden State Killer Leads to a Suspect in 1987 Murders

Technique Used to Find Golden State Killer Leads to a Suspect in 1987 Murders

The DNA of second cousins helped lead detectives to William Earl Talbott II, who was arrested Thursday in in Washington State in connection with the 1987 murders of Jay Cook and Tanya Van Cuylenborg. Their pictures were displayed at a news conference in April.

For Mark Willenbring, Substance Abuse Treatment Begins With Research

For Mark Willenbring, Substance Abuse Treatment Begins With Research

Dr. Mark Willenbring at his Alltyr outpatient clinic for substance abuse in St. Paul.

‘Blood Moon’ Provides Dramatic Sights, and a Dose of Folklore

‘Blood Moon’ Provides Dramatic Sights, and a Dose of Folklore

The entire moon was in shadow for 103 minutes, about 15 minutes longer than the average eclipse, and was visible from Europe, Africa, Asia, Australia and parts of South America.

Silicon Valley’s Water Conservation Conundrum

Silicon Valley’s Water Conservation Conundrum

­“Silicon Valley has been talking about water technology since they started talking about clean tech, but there are no new big ideas,” said Joel Makower, the chairman and executive editor of the GreenBiz Group.


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