science


Hot Heads: Why Mammals Need R.E.M. Sleep

Hot Heads: Why Mammals Need R.E.M. Sleep

Fur seals can switch off and on R.E.M. sleep when they're in the sea and on land, a pattern never seen before. Scientists believe it might mean R.E.M. sleep helps generate heat in our skulls, like shivering for the brain.

NASA Budgets for a Trip to the Moon, but Not While Trump Is President

NASA Budgets for a Trip to the Moon, but Not While Trump Is President

Vice President Mike Pence at the National Space Council’s first meeting in Chantilly, Va., in October.

Arctic Foxes on a Swedish Mountain Turned ‘Blue.’ It Was a Good Thing.

Arctic Foxes on a Swedish Mountain Turned ‘Blue.’ It Was a Good Thing.

An arctic fox near Helagsfjället mountain in Sweden. Foxes in the area were severely inbred until three males from a Norwegian captive breeding population turned up.

In Footprints on Scotland’s Isle of Skye, Signs of a Dinosaur Playground

In Footprints on Scotland’s Isle of Skye, Signs of a Dinosaur Playground

A sauropod footprint found in Scotland was among several that included tracks left by smaller, two-legged meat-eaters. Their presence together upends a theory that the larger plant-eaters waded into shallow, muddy waters to evade predators.

Rhino Embryos Made in Lab to Save Nearly Extinct Subspecies

Rhino Embryos Made in Lab to Save Nearly Extinct Subspecies

Sudan, the last male northern white rhino, who died in March.

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.

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.

Clown Fish Need More Energy to Live in a Bleached Home

Clown Fish Need More Energy to Live in a Bleached Home

Researchers at the University of Glasgow studied physiological indicators of stress in clown fish living with bleached anemones, a result of warming temperatures and other environmental disturbances.

A Synthetic Biology Conference Lures an Intriguing Audience

A Synthetic Biology Conference Lures an Intriguing Audience

Neil Gershenfeld of the Massachusetts Institute of Technology says that synthetic biology, which involves the creation of biological systems intended for specific purposes, can generate scientific advances as well as ethical questions.

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.

In Cave in Israel, Scientists Find Jawbone Fossil From Oldest Modern Human Out of Africa

In Cave in Israel, Scientists Find Jawbone Fossil From Oldest Modern Human Out of Africa

A fossilized human jawbone discovered in Israel. The find may suggest that Homo sapiens first migrated out of Africa at least 50,000 years earlier than previously thought.

Archaeologists in China Discover the Oldest Stone Tools Outside Africa

Archaeologists in China Discover the Oldest Stone Tools Outside Africa

One of the 2.1 million-year-old artifacts, right, recovered from a gully in western China, left, suggest that hominins may have left Africa far earlier than previously believed.

Mars Is Frigid, Rusty and Haunted. We Can’t Stop Looking at It.

Mars Is Frigid, Rusty and Haunted. We Can’t Stop Looking at It.

A lunar eclipse, visible in Sumatra, Indonesia on Saturday, could be seen alongside Mars, which is the closest it's been to Earth in 15 years.

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.

A Night Watchman With Wheels?

A Night Watchman With Wheels?

A promotional composite image from Knightscope showing the K5 Autonomous Data Machine.


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