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On Earth, a giant, lava-spewing fissure opened up along Iceland's Sundhnúkur crater row on Wednesday (July 16) following an earthquake swarm in the region. The eruption spread to a second fissure, with the larger fissure measuring around 1.5 miles (2.4 kilometers) long and the smaller one coming in at about 1,600 feet (500 m).
Elsewhere in our solar system, the sun has had a particularly active week, sending out a series of giant plasma plumes, including one dubbed "The Beast." The projection of plasma stretched more than 100,000 miles (165,000 km) across — that’s 13 times the width of our planet.
To achieve this new speed, scientists developed a new form of optical fiber to send information over roughly the distance between New York and Florida.
Data traffic volumes worldwide are expected to grow significantly in the coming years, and new high-capacity optical communication systems like this will be required to meet the increased demand.
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Salt-encrusted rocksat the surface of the Dead Sea.
(Image credit: Ido Meirovich via Getty Images)
When we talk about mountains and other tall geological structures, we usually compare their height against sea level. For example, Mount Everest, the tallest mountain on Earth, towers more than 29,000 feet (8,800 m) above sea level. But can land ever go below sea level? And what is the lowest point on land?
Psilocybin, the psychoactive ingredient in shrooms, may protect telomeres, structures at the ends of DNA that are known to shrink with aging.
(Image credit: Saska RF via Shutterstock)
Psilocybin is the main psychoactive ingredient in magic mushrooms. It may also, in small quantities, have a range of therapeutic potentials, with studies showing promising results in treating anxiety, depression and neurodegenerative disorders like Alzheimer's disease. Now, scientists have found that psilocybin may also delay cellular aging.
By looking at isolated human cells in a lab, scientists found that the drug extended the cells' lifespan by up to 57%, depending on the dosage given. Meanwhile, the drug was shown to increase the lifespan of aging mice and improve their fur quality, in a transformation that the researchers described as "dramatic."
"I was floored by the data," Louise Hecker, study senior author and an associate professor at Baylor College of Medicine in Houston, told Live Science.
Magnetic minerals locked inside artifacts from ancient civilizations reveal a snapshot of Earth's magnetic field at the time. That, in turn, could give us insights into its future.
(Image credit: Wei-An Jin)
In 2008, archaeologist Erez Ben-Yosef from Tel Aviv University accidentally discovered the strongest magnetic field anomaly ever found after unearthing a piece of Iron Age "trash." On examination, the hunk of copper slag — a waste byproduct of forging metals — recorded an intense spike in Earth's magnetic field around 3,000 years ago; so intense that existing geological models were not able to explain it.
After collecting more archaeological samples from around the area in southern Jordan, Ben-Yosef and geologist Ron Shaar from the Hebrew University of Jerusalem were able to confirm intense surges in the Earth's magnetic field, emanating from the Middle East, from around 1100 to 550 B.C.
So what do these findings tell us about Earth's mysterious magnetic field, and how can it be used to make predictions about the field in the future?
Something for the weekend
If you're looking for something a little longer to read over the weekend, here are some of the best long reads, book excerpts and interviews published this week.
For years, scientists had assumed that sloths don't fart — believing that the methane produced by their slow digestive system was simply absorbed into their bloodstreams and breathed out through their mouths. That was until researchers caught a baby sloth tooting on camera.
The video, shared by zoologist and presenter Lucy Cooke and wildlife veterinarian Andrés Sáenz Bräutigamon Instagram on Tuesday (July 15), shows a baby Hoffman's two-toed sloth (Choloepus hoffmanni) letting rip in a bucket of water.
"Yes, sloths do fart. And I may have just witnessed the first documented case," Cooke said.
Pandora is the trending news editor at Live Science. She is also a science presenter and previously worked as Senior Science and Health Reporter at Newsweek. Pandora holds a Biological Sciences degree from the University of Oxford, where she specialised in biochemistry and molecular biology.
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