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    Don't Miss: Marvel's Ant Man and the Wasp: Quantumania

    New Scientist’s weekly round-up of the best books, films, TV series, games and more that you shouldn’t miss

    Humans

    8 February 2023

    Disney
    Watch
    Ant-Man and the Wasp: Quantumania stars Paul Rudd (pictured above) as petty thief-turned-Avenger Scott Lang in a new Marvel movie. Set in the Quantum Realm, Lang faces Kang the Conqueror. On general release 17 February.

    Read
    This Won’t Hurt says Marieke Bigg, tongue firmly in cheek, as she explains how medicine fails women, from research to diagnosis and treatment. Today’s landscape, she argues, was designed for men. On sale from 16 February.

    Visit
    Unlocking the mysteries of the heart is a talk by Sian Harding based on her book The Exquisite Machine. … More

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    Marvel's Midnight Suns review: Meet your heroes in new strategy game

    In Marvel’s Midnight Suns, you are in charge of a team of superheroes who fight villains but also hang out. Who wouldn’t want to go fishing with Spider-Man or play video games with Wolverine, asks Jacob Aron

    Humans

    8 February 2023

    By Jacob Aron
    Try explaining Doctor Strange’s powers in terms of science2K Games
    Marvel’s Midnight Suns
    Firaxis Games
    PC, PlayStation 4 and 5, Xbox One and Series S/X, Nintendo Switch
    WHILE we wait for a rash of new games to arrive (see my previous column), I have been mopping up a few from last year that I hadn’t yet managed to finish.
    The one that has been occupying most of my time is Marvel’s Midnight Suns, which puts you in charge of a team of famous superheroes. You play as a new character … More

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    A three-year drought may have brought down the ancient Hittite empire

    Wood from a burial chamber in modern Turkey reveals there was a sudden severe drought around the time Hittite cities were abandoned 3000 years ago

    Humans

    8 February 2023

    By Clare Wilson
    A burial mound in Gordion, an archaeological site in Turkey, which was the source of wood samples that gave a record of the climate centuries beforeJohn Marston
    A three-year-drought may have led to the fall of the Hittite empire in the Middle East 3000 years ago.
    The finding comes from analysing timber used to make the burial chamber of a later ruler, who may have been the father of King Midas, referred to in Greek legends.
    The sudden drought “would have undoubtedly caused mass problems with food provision. That would have affected the tax base of the empire pretty dramatically,” says Sturt Manning at Cornell University in Ithaca, New York.Advertisement
    The Hittite empire, which encompassed most of what is now Turkey and lasted nearly five centuries, was one of the major geopolitical forces of the ancient world, with a mastery of ironwork, a cuneiform writing system and an army that could take on neighbouring Egypt.
    Ancient texts and archaeological discoveries suggest that around 1200 BC, cities began being abandoned and the empire splintered into independent states that were later overwhelmed by Assyrians from the east.
    Several causes have been proposed, including disease, famine, a centuries-long shift to a drier climate, as well as earlier invasions by mysterious groups named “Sea Peoples” in Egyptian texts.
    Now, Manning’s team has found evidence of a sharp and severe drought from a huge chamber tomb built in the city of Gordion in 748 BC. As the tomb’s mound is much bigger than others nearby, and was made about the time the local King Midas took the throne, some archaeologists say it could have been made for Midas’s father, the previous ruler – although nothing to identify the occupant remains.
    Wood sample showing reduced growth for three consecutive yearsBrita Lorentzen
    Clues to the fall of the Hittites, centuries earlier, come from the juniper logs making up the burial chamber. The logs were taken from 18 trees, which were growing from the period 1775 to 748 BC.
    Less rainfall means less tree growth, which shows up as narrower gaps between tree rings. The logs show there were 80 instances of two or more consecutive years with low rainfall, and one of these was the three years from 1198 to 1196 BC – just when Hittite cities started being abandoned.
    This was supported by another kind of test, measuring the ratio of different forms of carbon from samples of the wood. This shows gradually increasing dryness of the atmosphere between 1300 and 1200 BC, then spikes of dryness from 1222 to 1195 BC.
    “Most traditional societies had some storage that would have helped them through one bad harvest,” says Manning. “By the time you get to a third one in a row, it’s become a crisis.”
    Alan Greaves at the University of Liverpool in the UK, who wasn’t involved in the research, says the results shed new light on the climate changes at the time. “How do you pay for soldiers, how do you pay for artisans to make things?” he says. “A short, sharp drought would be enough to topple a very centralised state based heavily on grain and the gathering in and distribution of agricultural goods.”

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    The Kuiper Belt’s dwarf planet Quaoar hosts an impossible ring

    The dwarf planet Quaoar has a ring that is too big for its metaphorical fingers. While all other rings in the solar system lie within or near a mathematically determined distance of their parent bodies, Quaoar’s ring is much farther out.

    “For Quaoar, for the ring to be outside this limit is very, very strange,” says astronomer Bruno Morgado of the Federal University of Rio de Janeiro. The finding may force a rethink of the rules governing planetary rings, Morgado and colleagues say in a study published February 8 in Nature.

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    Quaoar is an icy body about half the size of Pluto that’s located in the Kuiper Belt at the solar system’s edge (SN: 8/23/22). At such a great distance from Earth, it’s hard to get a clear picture of the world.

    So Morgado and colleagues watched Quaoar block the light from a distant star, a phenomenon called a stellar occultation. The timing of the star winking in and out of view can reveal details about Quaoar, like its size and whether it has an atmosphere.

    The researchers took data from occultations from 2018 to 2020, observed from all over the world, including Namibia, Australia and Grenada, as well as space. There was no sign that Quaoar had an atmosphere. But surprisingly, there was a ring. The finding makes Quaoar just the third dwarf planet or asteroid in the solar system known to have a ring, after the asteroid Chariklo and the dwarf planet Haumea (SN: 3/26/14; SN: 10/11/17).

    Even more surprisingly, “the ring is not where we expect,” Morgado says.

    Known rings around other objects lie within or near what’s called the Roche limit, an invisible line where the gravitational force of the main body peters out. Inside the limit, that force can rip a moon to shreds, turning it into a ring. Outside, the gravity between smaller particles is stronger than that from the main body, and rings will coalesce into one or several moons.

    “We always think of [the Roche limit] as straightforward,” Morgado says. “One side is a moon forming, the other side is a ring stable. And now this limit is not a limit.”

    For Quaoar’s far-out ring, there are a few possible explanations, Morgado says. Maybe the observers caught the ring at just the right moment, right before it turns into a moon. But that lucky timing seems unlikely, he notes.

    Maybe Quaoar’s known moon, Weywot, or some other unseen moon contributes gravity that holds the ring stable somehow. Or maybe the ring’s particles are colliding in such a way that they avoid sticking together and clumping into moons.

    The particles would have to be particularly bouncy for that to work, “like a ring of those bouncy balls from toy stores,” says planetary scientist David Jewitt of UCLA, who was not involved in the new work.

    The observation is solid, says Jewitt, who helped discover the first objects in the Kuiper Belt in the 1990s. But there’s no way to know yet which of the explanations is correct, if any, in part because there are no theoretical predictions for such far-out rings to compare with Quaoar’s situation.

    That’s par for the course when it comes to the Kuiper Belt. “Everything in the Kuiper Belt, basically, has been discovered, not predicted,” Jewitt says. “It’s the opposite of the classical model of science where people predict things and then confirm or reject them. People discover stuff by surprise, and everyone scrambles to explain it.”

    More observations of Quaoar, or more discoveries of seemingly misplaced rings elsewhere in the solar system, could help reveal what’s going on.

    “I have no doubt that in the near future a lot of people will start working with Quaoar to try to get this answer,” Morgado says. More

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    Neolithic complex dubbed ‘Stonehenge of the North’ opens to UK public

    Two sections of the Thornborough Henges near Ripon, UK, have been donated to the public body Historic England in an effort to preserve the millennia-old monuments

    Humans

    3 February 2023

    By Madeleine Cuff
    The central of the three Thornborough HengesHistoric England
    Thornborough Henges, a Neolithic complex near Ripon in North Yorkshire, UK, known as the “Stonehenge of the North”, has been donated to public ownership and is now open to visitors.  
    The site dates from 3500 to 2500 BC and features three earth circles, each 4 metres high and 200 metres across. The earthworks were probably used as ceremonial gathering places and trading centres by early Britons, archaeologists believe. 
    Two of the three henges have been donated to the public body Historic England by building firm Tarmac. They are now under the care of the charity English Heritage and are free for the public to visit. Lightwater Holdings, a local company, has also donated parts of the wider monument. Advertisement
    The henges are “a link to our ancient ancestors, through thousands of years, inspiring a sense of wonder and mystery”, Duncan Wilson at Historic England said in a statement.
    “We are thrilled to have acquired this highly significant site for the nation, ensuring that these magnificent monuments are safe and will be preserved for generations to come.” 
    The southern and central hengesHistoric England
    The transfer of ownership means the two earthworks will be removed from Historic England’s risk register. They have been on the register since 2009, over concerns the sites were being eroded by livestock and rabbits.  
    Today, all three henges are visible as large, circular banks, but thousands of years ago, they would have stood above wetlands. They may have been covered in a sulphate mineral known as gypsum, creating white landmarks visible for miles.  
    The site’s opening to the public will bring its story to new audiences, according to Kate Mavor at English Heritage. “Thornborough Henges is one of the most important ancient sites in Britain and yet almost completely unknown. We are looking forward to sharing its significance, its stories and its secrets with the public,” she said in a statement. 

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    Vikings brought horses and dogs to England, cremated bones confirm

    The first physical proof that Vikings brought horses and dogs to England has been unearthed

    Humans

    1 February 2023

    By Jeremy Hsu
    Excavations at Heath Wood in EnglandJulian Richards, University of York
    Archaeologists have uncovered the first physical evidence that confirms some Vikings shipped their own horses and dogs from Scandinavia to England.
    The animal bone evidence comes from a burial mound at the only known Viking cremation cemetery in the British Isles. The Heath Wood cemetery – located in what is now Derbyshire in central England – is believed to be a burial ground for the first large Viking army to travel to the country. The soldiers arrived in AD 873 on a campaign of … More

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    Neanderthals hunted enormous elephants that fed 100 people for a month

    The extinct straight-tusked elephant was even larger than modern African elephants, making it unclear if Neanderthal hunters could take one down, but a newly analysed trove of bones suggests it was possible

    Humans

    1 February 2023

    By Clare Wilson
    A reconstruction of the straight-tusked elephantLUTZ KINDLER, MONREPOS
    Neanderthals regularly hunted and butchered elephants in Europe thousands of years ago, according to an analysis of marks made by stone tools on a trove of bones.
    The find suggests the ancient humans either lived in larger groups than previously suspected or that they had ways of processing the flesh so it didn’t spoil, says Wil Roebroeks at Leiden University in the Netherlands, given the amount of meat involved. “These elephants are really big calorie bombs.”
    There has long been debate over whether Neanderthals, distant cousins of modern humans, could have hunted the straight-tusked elephants (Palaeoloxodon antiquus). These extinct giants stood 4 metres tall, making them larger than modern African elephants and woolly mammoths.Advertisement
    To find out more, Roebroeks’s team took a closer look at elephant bones found alongside other animal remains and stone tools in a quarry near Halle, Germany, which was dug out from the 1980s. The bones have been dated to about 125,000 years ago, when Neanderthals were the only humans known to be in the area.
    The remains were from more than 70 elephants, with a few found as nearly complete skeletons. The marks left on the bones suggest the animals were thoroughly butchered to obtain every last scrap of meat and fat – including, for instance their brains and all of the bulky fat pads in their feet.
    There were also few gnaw marks left by scavenging carnivores, suggesting little food was left on the carcass. “There’s maybe a bit of nibbling on isolated vertebra, but most of these remains were so clean they weren’t attractive for carnivores,” says team member Lutz Kindler at the Museum for Human Behavioural Evolution in Neuwied, Germany.
    The team has calculated that all the flesh from one of the elephants would have fed about 100 adults for a month. Some researchers have previously suggested that Neanderthals lived in fairly small groups of up to about 25 people, based on factors such as the size of their caves or analysis of their footprints. “There’s a perception they lived in small groups, but when you look for the evidence, there’s nothing,” says Clive Finlayson at the Gibraltar National Museum, who wasn’t involved in the new study.
    If a smaller group of, say, 25 people had killed an elephant, they would have had to spend about three to five days working to strip the carcass of flesh and processing it so that it wouldn’t spoil, for instance by drying or smoking it, says Roebroeks. The marks on the bones mean the meat wasn’t simply left to rot once the Neanderthals had eaten their fill.

    The team found a higher proportion of male and older elephants among the remains, suggesting that the Neanderthals were specifically targeting these animals, rather than scavenging from ones that had died of natural causes.
    This makes some sense, as in modern elephants older males tend to live alone. Targeting loners would making hunting easier, says Roebroeks, as they could be driven into traps or muddy shores. “Large mammals are [easier] to kill as long as you are able to limit their mobility, and then they are finished off with spears,” he says.
    Previous work has shown that Neanderthals may have cleared forests in the region where the bones were found, which also supports the idea they lived in larger groups.

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    Don’t Miss: Innervate, an EP reflecting on epilepsy by Liza Bec

    New Scientist’s weekly round-up of the best books, films, TV series, games and more that you shouldn’t miss

    Humans

    1 February 2023

    BEN HUGHES
    Listen
    Innervate is an EP by composer Liza Bec (pictured above), who almost lost their performance career to a rare epilepsy triggered by playing music. The EP spotlights the roborecorder, an instrument they built. On release 10 February.

    Read
    The Meaning of Geese is teased out by Nick Acheson, whose epic bicycle adventures trace the incoming paths of pink-footed and brent geese as they arrive from Iceland and Siberia to fill the skies of his native Norfolk, UK. On sale from 9 February.
    Dan Weill
    Visit
    Drug experiments and forays into medicines, narcotics and everyday … More