CHESTERBROOK, Pa.--(BUSINESS WIRE)--Aug 1, 2023--

WILMINGTON, Del. & BALTIMORE--(BUSINESS WIRE)--May 23, 2023--

New research has shown that our early ancestors almost went extinct some 900,000 years ago. Using a new method called FitCoal (fast infinitesimal time coalescent process), researchers analysed the likelihood of present-day genome sequences to project current human genomic variation backwards in time. They applied the technique to the genomes of 3,154 people from 10 African and 40 non-African populations, and found a massive crash in genetic diversity during the transition between the early and middle Pleistocene. “Results showed that human ancestors went through a severe population bottleneck with about 1,280 breeding individuals between around 930,000 and 813,000 years ago,” the study authors wrote in the journal Science. “The bottleneck lasted for about 117,000 years and brought human ancestors close to extinction,” they say. Wiping out roughly 98.7 percent of the ancestral human population, “the bottleneck could also have increased the inbreeding level of our ancestors, thus contributing to the 65.85 percent loss in present-day human genetic diversity,” explained the researchers. This probably happened because of changes in the global climate as short-term glaciations became longer-lasting, triggering a drop in ocean temperatures, prolonged drought, and the loss of large numbers of species that humans might have relied on for food. Then, around 813,000 years ago, populations finally recovered, with a 20-fold increase in numbers because of fire combined with the return of warmer temperatures, researchers reckon. What a near miss, eh? Sign up to our free Indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

DENVER, Colo. & ROOSEVELT, Utah--(BUSINESS WIRE)--Aug 30, 2023--

By Ernest Scheyder LAKE CHARLES, Louisiana The global battle to reshape the lithium industry is sucking in oil

Warzone Caldera is shutting down on Sept. 21, 2023, and all original Warzone skins, cosmetics, and movement will disappear.

Earth has been hit by a blast from a dead star so energetic that scientists cannot explain it. The burst of gamma rays, originating in a dead star known as a pulsar, is the most high energy of its kind ever seen. It was equivalent about ten trillion times the energy of visible light, or 20 tera-electronvolts. Scientists are unable to explain exactly what kind of a scenario could lead a pulsar to emit such intense energy, and the researchers behind the breakthrough say that it “requires a rethinking of how these natural accelerators work”. Scientists hope that they can find yet more powerful energy blasts from pulsars, with a view to better understanding how they are formed. Pulsars are formed when a star dies, exploding in a supernova and leaving behind a tiny, dead star. They are just 20 kilometres across, and spin extremely fast with a powerful magnetic field. “These dead stars are almost entirely made up of neutrons and are incredibly dense: a teaspoon of their material has a mass of more than five billion tonnes, or about 900 times the mass of the Great Pyramid of Giza,” said Emma de Oña Wilhelmi, a scientist at the High Energy Stereoscopic System observatory in Namibia that detected the blast. As pulsars spin, they throw out beams of electromagnetic radiation, throwing it out like a cosmic lighthouse. That means that someone in one spot – like the Earth – will see the radiation pulses flash in a regular rhythm as they spin past. The radiation is thought to be the result of fast electrons that are produced and thrown out by the the pulsar’s magnetosphere, which is made up of plasma and electromagnetic fields that surround the star and spin with it. Scientists can search the radiation for different energy bands within the electromagnetic spectrum, helping them understand it. When scientists previously did that with the Vela pulsar examined in the new study, they found that it was the brightest everseen in the radio band, and the brightest persistent source in the giga-electronvolts. But the new research found that there is a part of the radiation with even more high energy components. “That is about 200 times more energetic than all radiation ever detected before from this object,” said co-author Christo Venter from the North-West University in South Africa. Scientists don’t know exactly how that could happen. 
“This result challenges our previous knowledge of pulsars and requires a rethinking of how these natural accelerators work,” says Arache Djannati-Atai from the Astroparticle & Cosmology (APC) laboratory in France, who led the research. “The traditional scheme according to which particles are accelerated along magnetic field lines within or slightly outside the magnetosphere cannot sufficiently explain our observations. “Perhaps we are witnessing the acceleration of particles through the so-called magnetic reconnection process beyond the light cylinder, which still somehow preserves the rotational pattern? But even this scenario faces difficulties to explain how such extreme radiation is produced.” An article describing the findings, ‘Discovery of a Radiation Component from the Vela Pulsar Reaching 20 Teraelectronvolts’, is published today in the journal Nature Astronomy. Read More ‘Ring of fire’ solar eclipse this month will be last until 2046 Mystery behind massive star suddenly vanishing decoded New discovery is ‘holy grail’ breakthrough in search for aliens, scientist say ‘Ring of fire’ solar eclipse this month will be last until 2046 Mystery behind massive star suddenly vanishing decoded New discovery is ‘holy grail’ breakthrough in search for aliens, scientist say

One of Elon Musk's least-favorite Twitter users is moving to Meta's competing platform Threads.

The investment arm of HSBC Holdings Plc is ahead of peers in backing shareholder resolutions designed to force

By Clark Mindock The first trial in several U.S. climate change cases brought by youths kicked off on

How much do you really know about our biological and physiological responses to *waves hands around* all this? Grab a stress ball and find out.

Apple is significantly increasing the price of its TV streaming service. The cost of Apple TV Plus will go up by around a third: from $6.99 to $9.99, or from £6.99 to £8.99. The annual price has a similar increase, from $69 to $99. Apple will also raise the cost of other services: Apple Arcade will go from $4.99 to $6.99, and Apple News Plus will go from $9.99 to $12.99. The Apple One bundle that wraps those services into one subscription will also get increases, with the individual membership going from $16.95 to $19.95. Many Apple subscriptions will stay at the same price, however. Apple Music, Fitness Plus and the premium iCloud Plus subscription will not get price rises. Subscribers will see the new prices go into effect in 30 days, after their next subscription. Apple is among the last of its competitors to substantially increase prices in recent months. Both Netflix and Disney have also raised their monthly subscriptions, with both citing the need to make more programmes and increased costs. The change from Apple comes ahead of the publication of its fourth quarter earnings next week. In recent years, Apple has looked to its services business to help its growth, amid slowdowns in some other businesses. It also after a separate report that Apple will completely overhaul its TV app later this year. The change, planned for around December, will consolidate the TV app to focus more on streaming services and bring a look more similar to that on Netflix, Bloomberg reported. At the moment, Apple’s TV app includes a significant focus on downloading Movies and TV shows from the iTunes Store. The new design is expected to bring more Apple TV Plus to a more central place in the app, as well as changing its menus to make it easier to find its programmes and those from others. Read More The Apple Watch feature everyone has been waiting for has finally arrived What to expect Apple’s surprise, spooky upcoming launch Apple announces surprise event: ‘Scary fast’