science


The Thing Inside Your Cells That Might Determine How Long You Live

The Thing Inside Your Cells That Might Determine How Long You Live

A colored transmission electron micrograph of a human serous cell’s nucleus, with its nucleolus in purple. The nucleolus functions as the sort of brain of the nucleus, making rRNA, a basic ingredient for making proteins.

Poisonous Prey Turned Into Hunter’s Defense

Poisonous Prey Turned Into Hunter’s Defense

Cnidarians, including corals and many jellyfish, feed and defend themselves with stinging capsules. Some sea slugs have evolved several lines of defense.

‘Global Greening’ Sounds Good. In the Long Run, It’s Terrible.

‘Global Greening’ Sounds Good. In the Long Run, It’s Terrible.

Plant growth is increasing because of rising carbon dioxide. But plants return carbon dioxide into the atmosphere at night, in a process called respiration.

Hundreds of Reindeer Died by Lightning. Their Carcasses Became a Laboratory.

Hundreds of Reindeer Died by Lightning. Their Carcasses Became a Laboratory.

The carcasses of 300 reindeer on a plateau in Norway may help engender new plant diversity, according to scientists.

Baleen Whales Intermingled as They Evolved, and Share DNA With Distant Cousins

Baleen Whales Intermingled as They Evolved, and Share DNA With Distant Cousins

Fin whales differ in size, color and body shape from their cousins, the larger blue whale, but scientists decoding the genome of several baleen species say there was intermingling during the course of their evolution.

New Wearable Sensor Can Collect Data From Sweat

New Wearable Sensor Can Collect Data From Sweat

Jo-Wilfried Tsonga of France wiped sweat from his face during the Australian Open. Researchers say their new wearable sensor can measure perspiration for conditions like dehydration and fatigue.

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.

Boulder-Size Clues to How Humans Settled the Americas

Boulder-Size Clues to How Humans Settled the Americas

Alia Lesnek, left, and Charlotte Lindqvist of the University at Buffalo, observing boulders on Dall Island in Alaska. Scientists have found evidence in Alaska’s rocks that the first people to populate the Americas were island-hopping sea-farers.

NASA’s New Horizons Takes Photos of Ultima Thule, 4 Billion Miles Away

NASA’s New Horizons Takes Photos of Ultima Thule, 4 Billion Miles Away

S. Alan Stern, center, New Horizons’ principal investigator, surrounded by children at Johns Hopkins University Applied Physics Laboratory in Laurel, Md., on Tuesday.

The Sounds That Haunted U.S. Diplomats in Cuba? Lovelorn Crickets, Scientists Say

The Sounds That Haunted U.S. Diplomats in Cuba? Lovelorn Crickets, Scientists Say

Scientists say a recording of disturbing sounds made by American diplomats in Cuba actually may be of a very loud cricket species.

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.

Gaia’s Map of 1.3 Billion Stars Makes for a Milky Way in a Bottle

Gaia’s Map of 1.3 Billion Stars Makes for a Milky Way in a Bottle

A view of the Milky Way and neighboring galaxies, containing more than a billion stars, released by the European Space Agency’s Gaia mission.

Japan’s Hayabusa2 Spacecraft Creeps Up on the Ryugu Asteroid

Japan’s Hayabusa2 Spacecraft Creeps Up on the Ryugu Asteroid

A view of the asteroid Ryugu captured by the Hayabusa2 spacecraft on Sunday, from a distance of about 40 kilometers.

Vanishing in the Wild, These Salamanders Found Refuge in a Convent

Vanishing in the Wild, These Salamanders Found Refuge in a Convent

Sister Ofelia Morales Francisco, left, and Sister Rosa Cortez in the Convento Maria Inmaculada de La Salud in Mexico. The nuns make a cough syrup, in the bottle at right, from achoques, a type of salamander vanishing from nearby Lake Patzcuaro.


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