Last Build Date: Thu, 8 Dec 2016 15:48:22 -0800Copyright: ©2016 Los Angeles Times
Thu, 8 Dec 2016 13:35:00 PST
Electronic cigarettes have all the addictive potential of traditional tobacco products, and health officials should do all they can to keep them out of the hands of teens and young adults, according to the federal government’s first comprehensive review of e-cigarettes.
The report released Thursday...(image)
Thu, 8 Dec 2016 10:00:00 PST
While browsing amber markets in Myanmar, scientists discovered the feathers and partial tail of a tiny baby dinosaur that lived some 99 million years ago.
The find, described in the journal Current Biology, offers a rare window onto the structure and organization of dinosaur feathers — one that...(image)
Thu, 8 Dec 2016 00:05:00 PST
The final numbers for 2015 are in and it’s now official: Life expectancy for Americans was shorter last year than it was the year before.
A person born in the U.S. in 2015 could expect to live 78.8 years, on average. That’s 0.1 years — or 36.5 days — fewer than in 2014.
The main reason for this...(image)
Wed, 7 Dec 2016 13:50:00 PST
Talk about a glamour shot! NASA’s Cassini spacecraft has completed the first of its ring-grazing orbits and snapped stunning images of the strange hexagon-shaped jet stream at Saturn’s northern pole.
With less than a year left to go in its mission, Cassini’s new orbits mark the start of special...(image)
Wed, 7 Dec 2016 13:00:00 PST
Researchers in Spain have taken a key step in unraveling one of nature’s most malignant mysteries: How do cancerous tumor cells that establish a beachhead in one organ strike out in search of new territory to colonize?
And more important, how might they be stopped?
Some answers to those questions...(image)
Wed, 7 Dec 2016 10:05:00 PST
New research demonstrates that, in mice whose brains are under attack by Alzheimer’s dementia, exposure to lights that flicker at a precise frequency can right the brain’s faulty signaling and energize its immune cells to fight off the disease.
Light therapy for Alzheimer’s is miles from being...(image)
Wed, 7 Dec 2016 03:00:00 PST
The latest findings in Earth science are brought to you by ancient astronomers who observed the heavens as much as 2,700 years ago.
Thanks to hundreds of records of lunar and solar eclipses carved in clay tablets and written into dynastic histories, modern scientists have determined that the amount...(image)
Tue, 6 Dec 2016 16:45:00 PST
An analysis of recent school shootings suggests a way to make them less likely: Mandatory background checks.
States that required background checks for gun buyers were about half as likely to experience a school shooting compared with states with no such requirement, a new study reports. In addition,...(image)
Sat, 3 Dec 2016 03:00:00 PST
A new report paints a picture of two Americas divided over something that’s a critical part of their daily life — food.
On one side are those who care deeply about the food they eat and how it is produced. These Americans embrace organic foods, are suspicious of genetically modified crops and are...(image)
Thu, 1 Dec 2016 18:00:00 PST
Dogs know how to follow their noses — and scientists are now taking the hint, too. Researchers who 3-D printed a model of a dog’s snout have found that high-speed sniffing seriously upgrades the ability of detectors to pick up explosive chemicals like TNT.
The discovery, described in the journal...(image)
Thu, 1 Dec 2016 17:00:00 PST
Lucy climbed trees, walked with a wobbly gait and had stronger muscles than humans, according to a new analysis of our ancient ancestor’s fossilized remains.
The work, published Wednesday in PLOS One, is the first to mine the internal bone structure of the world’s most famous Australopithecus afarensis for...(image)
Wed, 30 Nov 2016 22:00:00 PST
In findings that could pry open a door closed for nearly half a century, researchers have found that psilocybin — a hallucinogen long used in traditional healing rituals — eases the depression and soothes the anxiety of patients contending with serious illness and the prospect of imminent death....(image)
Wed, 30 Nov 2016 15:15:00 PST
Nearly 800 children are born in the U.S. each year with genetic diseases caused by mutations in a type of DNA inherited directly from their mothers. Scientists are working to prevent these diseases by helping couples have babies with DNA from three parents instead of the usual two.
A new study...(image)
Wed, 30 Nov 2016 15:10:00 PST
Move over, chemists. Thanks to proteins from Icelandic bacteria, scientists at Caltech have managed to coax microbes into making silicon-carbon bonds, a feat that until now has been achieved only by humans in the lab.
The findings, published last week in the journal Science, could open the door...(image)
Wed, 30 Nov 2016 10:10:00 PST
Ever since NASA’s New Horizons spacecraft sent back the first high-resolution images of Pluto’s great white heart, scientists have been puzzling over its origin.
Some have suggested that the planet rolled over to ensure this particular feature wound up in this particular spot; others say its location...(image)
Tue, 29 Nov 2016 17:10:00 PST
You probably know that exercise is good for you, but do you know whether you’re better off riding a bike or swimming laps in the pool?
Actually, if you want to get the biggest bang for your exercise buck, you should pick up a racket, new research reveals.
An analysis of more than 80,000 adults...(image)
Tue, 29 Nov 2016 03:00:00 PST
It’s the beginning of the end. On Nov. 30, NASA’s Cassini mission will begin the ring-grazing final chapter of its career at Saturn, one that will end with the spacecraft’s terminal plunge into the gas giant’s unforgiving atmosphere.
The second half of this chapter, in which the spacecraft will...(image)
Mon, 28 Nov 2016 11:45:00 PST
Without sustaining a single concussion, a North Carolina high school football team showed worrisome brain changes after a single season of play, a new study has shown.
A detailed effort to capture the on-field experiences of 24 high school football players showed that, at the end of a single season...(image)
Thu, 24 Nov 2016 10:00:00 PST
For those who have lost the same 10, 20 or 50 pounds not once but many times over, new research may help explain why yo-yo dieters so often fail to maintain their hard-won weight loss.
The community of microorganisms that inhabit the gut are a key culprit, experiments in mice suggest. After being...(image)
Wed, 23 Nov 2016 20:35:00 PST
Whale sharks are the largest fish in the ocean, but that doesn’t mean they’re easy to study. Scientists hoping to learn about them must spy on them from the air, tag them with devices so they can be tracked via satellite or sneak up on them to collect tissue samples for DNA analysis.
Wed, 23 Nov 2016 17:30:00 PST
Your dog remembers more than you might think. A new study that tested the memory of man’s best friend found that dogs exhibit something akin to episodic memory — a process that’s been well documented in humans, but difficult to prove in other animals.
In experiments, the dogs were able to recall...(image)
Wed, 23 Nov 2016 15:50:00 PST
Coconut crabs might be the heavyweight champions of all crustaceans.
The largest land-dwelling crab on Earth, Birgus latro can lift about 66 pounds with its pincers and can pinch with about 750 pounds of force. That makes the coconut crab among the strongest terrestrial animals — only alligators...(image)
Wed, 23 Nov 2016 11:55:00 PST
Earthquake early warning systems may be due for a gravity boost. Scientists studying Japan’s 2011 Tohoku earthquake say they’ve found a signal faster than seismic waves to tell when a temblor is on its way.
The method, described this week in the journal Nature Communications, involves tracking...(image)
Tue, 22 Nov 2016 16:25:00 PST
The population of wild koalas in the southeast portion of Australia’s Queensland state has plunged by 80% in less than two decades, but researchers are offering a simple plan to save them. They can sum it up in three words: daylight saving time.
Changing the clocks would help stem the koalapocalypse...(image)
Tue, 22 Nov 2016 14:20:00 PST
Could ants get any cooler?
These amazing insects have been known to create rafts and bridges with their bodies and tend to vast fungus gardens. Now, a new study suggests they have also been farming plants for millions of years.
High in the trees of the island nation of Fiji, evolutionary biologist...(image)