For decades, the name “virus” meant small and simple. Not anymore. Meet the giants.
Today, scientists are finding ever bigger viruses that pack impressive amounts of genetic material. The era of the giant virus began in 2003 with the discovery of the first Mimivirus (SN: 5/23/09, p. 9). The viral titan is about 750 nanometers across with a genetic pantry boasting around 1.2 million base...
The Science Life
Ask a classroom of children to draw a scientist, and you’ll see plenty of Crayola-colored lab coats, goggles and bubbling beakers. That image hasn’t changed much since the 1960s. But the person wearing the lab coat is shifting.
A new analysis finds that more female scientists have appeared in kids’ drawings in recent decades — going from nearly nonexistent in the 1960s to about a third...
View the trailer
“The strangest place in the whole universe might just be right here.” So says actor Will Smith, narrating the opening moments of a new documentary series about the wonderful unlikeliness of our own planet, Earth.
One Strange Rock, premiering March 26 on the National Geographic Channel, is itself a peculiar and unlikely creation. Executive produced by Academy Award–...
We can’t see it, but brains hum with electrical activity. Brain waves created by the coordinated firing of huge collections of nerve cells pinball around the brain. The waves can ricochet from the front of the brain to the back, or from deep structures all the way to the scalp and then back again.
Called neuronal oscillations, these signals are known to accompany certain mental states....
Reviews & Previews
The Biological MindAlan JasanoffBasic Books, $30
At a small eatery in Seville, Spain, Alan Jasanoff had his first experience with brains — wrapped in eggs and served with potatoes. At the time, he was more interested in finding a good, affordable meal than contemplating the sheer awesomeness of the organ he was eating. Years later, Jasanoff began studying the brain as part of his...
On the hormonal roller coaster of life, the ups and downs of childbirth are the Tower of Power. For nine long months, a woman’s body and brain absorb a slow upwelling of hormones, notably progesterone and estrogen. The ovaries and placenta produce these two chemicals in a gradual but relentless rise to support the developing fetus.
With the birth of a baby, and the immediate expulsion of...
Scientists and journalists live for facts. Our methods may be very different, but we share a deep belief that by questioning, observing and verifying, we can gain a truer sense of how the world works.03/09/2018 - 10:20 Science & Society, Psychology
So when people question the scientific consensus on issues such as climate change, vaccine effectiveness or the safety of genetically modified organisms (SN: 2/6/16, p. 22), it’s no...
Letters to the Editor
Memory lane03/09/2018 - 10:20 Neuroscience, Animals, Particle Physics
Inspired by flatworm memory experiments from the 1950s, researchers are on the hunt for the elusive engram — the physical mark that a memory leaves on the brain — Laura Sanders reported in “Somewhere in the brain is a storage device for memories” (SN: 2/3/18, p. 22).
Readers flooded Science News with their thoughts and questions on the topic.
News in Brief
Adult mice and other rodents sprout new nerve cells in memory-related parts of their brains. People, not so much. That’s the surprising conclusion of a series of experiments on human brains of various ages first described at a meeting in November (SN: 12/9/17, p. 10). A more complete description of the finding, published online March 7 in Nature, gives heft to the controversial result, as well...