More stories

  • in

    Our pick of the best sci-fi and speculative fiction books for 2022

    By Sally Adee

    The Unfamiliar Garden / The Sky Vault
    Benjamin Percy
    Hodder & StoughtonAdvertisement
    Not one but two sequels to The Ninth Metal come out this year. A comet peppers Earth with a new metallic super-ore whose discovery changes everything. Out in January and August, respectively.

    Goliath: A novel
    Tochi Onyebuchi
    Tordotcom
    In the 2050s, space colonies offer refuge from a collapsing climate, but only for the rich. The rest have to figure out how to live in it. Out in January.

    Mickey7
    Edward Ashton
    St Martin’s Press
    Mickey7 is a disposable human who is sent to colonise dangerous new worlds, a job he is suited for because he can regenerate. After being lost, presumed dead, he meets his successor and they must team up to survive. Out in February.

    The This
    Adam Roberts
    Gollancz
    In the dystopian near future, smartphones have become sex toys and the hottest new social media platform grows directly into your brain. What could possibly go wrong? Out in February.

    The Cartographers
    Peng Shepherd
    Hachette
    In this dark fable, a young woman finds a strange map among her estranged father’s things after his untimely death. Deadly secrets and gothic-inflected speculative fiction ensue. Out in March.

    Plutoshine
    Lucy Kissick
    Orion 
    Lucy Kissick is a nuclear scientist with a PhD in planetary geochemistry. Her book about terraforming Pluto – even as native alien species are discovered – may put you in mind of Kim Stanley Robinson. Out in April.

    Dreams Bigger Than Heartbreak
    Charlie Jane Anders (Titan)
    Teenage geniuses in space. Book two of a fun, rompy, LGBTQ+ space opera series that blurs the line between young adult and science fiction. Out in April.

    Eversion
    Alastair Reynolds
    Gollancz
    Airships, steampunk, a mysterious artefact and expeditions that keep going wrong. It’s up to Dr Silas Coade to figure out why. Out in May.

    Glitterati
    Oliver Langmead
    Titan
    An influencer comedy of horrors billed as A Clockwork Orange meets RuPaul’s Drag Race. The fun kicks off when nosebleeds become a fashion trend – and it sparks a vicious fight for credit. Out in May.

    More on these topics: More

  • in

    The mummy of Egyptian pharaoh Amenhotep I has been digitally unwrapped

    Amenhotep I ruled Egypt from around 1525 to 1504 BC and his pristine mummy has never been unwrapped, but CT scans have now allowed us to peer inside

    Humans

    28 December 2021

    By Alex Wilkins
    Face mask of the never-before unwrapped mummy of pharaoh Amenhotep IS. Saleem and Z. Hawass
    One of the last remaining unwrapped royal Egyptian mummies has been scanned in detail for the first time.
    Amenhotep I, who ruled Egypt from around 1525 to 1504 BC in an era known as the New Kingdom, was found in 1881 by a French Egyptologist. But the king’s mummy was left untouched due to a highly preserved wrapping and ornate face mask. It has remained sealed in its sarcophagus ever since.
    Now, Sahar Saleem and Zahi Hawass at the University of Cairo in Egypt have “digitally unwrapped” Amenhotep I’s mummy with computed tomography (CT), using hundreds of high resolution X-ray slices to map out the ancient king’s skeleton and soft tissue.Advertisement
    “Royal mummies of the New Kingdom were the most well-preserved ancient bodies ever found, so these mummies are considered a time capsule,” says Saleem.
    “They can tell us about what the ancient kings and queens looked like, their health, ancient diseases, mummification techniques and manufacturing methods of funerary objects.”
    Amenhotep I’s mummy has been examined using simple X-ray scans in the past, but the detailed CT scan reveals several new facts: his bone structure indicates that he was 35 years old and 168.5 centimetres tall when he died.
    Left: the pharaoh’s skull. Right: the pharaoh’s mummy, showing his skull and skeleton within the bandagesS. Saleem and Z. Nuwass
    The study also seems to answer a long-standing mystery: previous scans had revealed that Amenhotep I had been embalmed by Egyptian priests for a second time 300 years after he was first entombed, after graverobbers apparently plundered his coffin. Saleem had theorised that the priests used this occasion to pilfer precious jewels placed on the body and in the bandages for themselves before re-embalming him.
    But the plentiful jewellery revealed in the scan  reveals that the priests “lovingly” re-embalmed Amenhotep I, according to Saleem. It was because the priests’ handiwork was so impressive and the mummy’s appearance was so pristine more than 3000 years later that 19th century archaeologists were convinced to leave him permanently unwrapped.
    Journal reference: Frontiers in Medicine, DOI: 10.3389/fmed.2021.778498

    Sign up to Our Human Story, a free monthly newsletter on the revolution in archaeology and human evolution

    More on these topics: More

  • in

    Bronze Age migration may have brought Celtic languages to Britain

    Analysis of ancient DNA reveals a mass migration of people from what is now France to England and Wales between 1000 and 875 BC

    Humans

    22 December 2021

    By Carissa Wong
    Illustration of a Celtic hill fort in the Iron AgeHeritage Image Partnership Ltd /Alamy
    The largest analysis of ancient DNA to date has revealed a mass migration of people from what is now France into England and Wales during the late Bronze Age, which may have spread Celtic languages to Britain.
    Two large migrations of people into Britain were previously known, the first taking place around 6000 years ago. The ancestry of these people came mostly from a group known to archaeogeneticists as Early European Farmers, with around 20 per cent from another group called Western European Hunter-Gatherers. This migration led to the replacement of most of the existing local hunter-gatherer ancestry.
    Around 4500 years ago, at the start of the Bronze Age, there was a second migration that consisted of descendents of livestock farmers from the Pontic-Caspian steppe – grassland that spans from present-day Bulgaria to Kazakhstan. Ancestry from this group eventually formed at least 90 per cent of the genetic make-up in Scotland, England and Wales.Advertisement
    People living in England and Wales today have more ancestry from Early European Farmers than people in the early Bronze Age did, suggesting a third migration from Europe may have occurred more recently.
    Ian Armit at the University of York in the UK and his colleagues sequenced the genomes of nearly 800 individuals from the Bronze Age to the Iron Age whose remains were found at archaeological sites in Britain and in western and central Europe. They looked at the proportion of Early European Farmer ancestry in these ancient people over time.

    The team found evidence of a third mass migration into Britain from France that took place between 1000 BC and 875 BC, during which Early European Farmer ancestry increased from around 30 per cent to roughly 36 per cent on average in southern Britain by the late Bronze Age. In the Iron Age, this stabilised at nearly half of the ancestry in populations of England and Wales.
    “We’ve always known this period of the middle and late Bronze Age was a period of tremendous connectivity between Britain and central and western Europe,” says Armit.
    “Prior to this study, we would have thought of the movement in terms of individuals and small groups, traders and [people looking for metal]. But the results show society was far more mobile than we thought – large sectors of society were on the move. Societies were very interconnected across the English Channel in a manner we hadn’t really appreciated before,” he says.
    The findings help shed light on a debate about when Celtic languages were first spoken in Britain. “The most established theory, based on the analysis of ancient object styles, is that Celtic languages came in during the Iron Age with Celtic speakers from continental Europe,” says Armit.
    But the new evidence supports a competing idea, based on linguistic studies, that Celtic languages expanded into Britain earlier, in the middle to late Bronze Age. However, we can’t tell from someone’s DNA what language they spoke, says Armit.
    Journal reference: Nature, DOI: 10.1038/s41586-021-04287-4
    Sign up to Our Human Story, a free monthly newsletter on the revolution in archaeology and human evolution

    More on these topics: More

  • in

    European wine grapes have their genetic roots in western Asia

    We used to think that European wine grapes were cultivated locally, independently of grape domestication in western Asia, but grape genetics suggests otherwise

    Humans

    21 December 2021

    By Carissa Wong
    Red grapes ready to be harvested in a vineyardalika/Shutterstock
    Grapes used to make common European wines may have originated from grapevines that were first domesticated in the South Caucasus region of western Asia. As these domesticated grapes dispersed westwards during the Greek and Roman times, they interbred with local European wild populations, which helped the wine grapes adapt to different European climates.
    The origins of grapes (Vitis vinifera) that are used in Europe and elsewhere to produce wines such as Merlot, Chardonnay and Pinot Noir have long been debated.
    It has been proposed that European wine grapes arose from the cultivation of wild European populations (V. vinifera subspecies sylvestris), independently of the original domestication of grapes in western Asia around 7000 years ago.Advertisement
    But a genetic analysis carried out by Gabriele Di Gaspero at the Institute of Applied Genomics in Udine, Italy, and his colleagues suggests that European wine grapes actually originated from domesticated grapes (V. vinifera subspecies sativa) that were initially grown for consumption as fresh fruit in western Asia.
    The team sequenced the genomes of 204 wild and cultivated grape varieties – to cover the range of genetic diversity in cultivated grapes – and compared how similar their genetic sequences were to one another.
    This revealed that as western Asian table grapes spread westwards across the Mediterranean and further inland into Europe, they interbred with wild European grape populations that grew nearby.

    “The wild plants grew close to vineyards and interbred – this was unintentional. But the results of the breeding created adaptive traits that were likely selected by humans intentionally,” says Di Gaspero. “By bringing together this genetic evidence and existing historical evidence, the introductions in southern Europe and inland likely occurred in Greek and Roman times, although we don’t know more specific dates.”
    By modelling how the ancestry of the grapes in different regions of Europe related to aspects of the local climate such as temperature and precipitation, the team discovered that European wild grapes probably contributed traits that enabled the ancestral grape vines to adapt to different regions as they moved westwards from Asia.
    The team also found evidence of the effect that domestication had on grape genetics.
    In wild grape varieties, a larger seed makes a larger berry because grape seeds produce a growth hormone called ethylene. But for human consumption, a larger berry-to-seed ratio is desirable. The team found that an enzyme not found in the berries of wild varieties was present in the berries of domesticated varieties. In other plants, the enzyme is known to help berries grow in response to ethylene, which suggests it does the same in grapes.
    Understanding which genes encode favourable traits in grapes can allow us grow better grape crops, says Di Gaspero.
    Journal reference: Nature Communications, DOI: 10.1038/s41467-021-27487-y

    More on these topics: More

  • in

    Higher US welfare benefits seem to protect children's brains

    The size of a child’s hippocampus can be limited by stress, and US state welfare schemes that give families $500 a month or more are linked to a reduction in this association

    Humans

    20 December 2021

    By Jason Arunn Murugesu
    Illustration of the hippocampus in a child’s brainScience Photo Library / Alamy
    Higher payments from US welfare schemes can reduce the impact that living in a low-income household has on the size of a crucial region of a child’s brain.
    David Weissman at Harvard University in Massachusetts, and his colleagues analysed images of the brains of more than 11,000 children aged 9 and 10 in the US, looking specifically at the size of each child’s hippocampus.
    “The hippocampus is a brain region involved in learning and memory,” says Weissman. Its development is believed to be impaired by excess stress, which can be caused by growing up in poverty, he says.Advertisement
    “Prior studies show that kids with small hippocampal volumes are more likely to develop internalising problems [such as anxiety and social withdrawal] and develop depression,” he says.
    The children came from 17 states, and while they aren’t wholly representative of the US population they are “pretty close”, according to Weissman. The data set is slightly skewed towards more urban areas because the imaging can only be done in places that have available neuroimaging equipment and related expertise.
    Weissman and his team looked at whether a state had expanded Medicaid, a federally subsidised healthcare scheme, in 2017. That year, states had to choose whether to begin covering a portion of the services that were previously fully covered by the federal government. Just over 7500 of the children involved lived in states that expanded Medicaid.
    Then the researchers analysed the average amount of welfare benefits people in each state received under various anti-poverty schemes. The higher this total, the more generous they considered the state’s benefits system. “It’s a rough estimate, but it works,” says Weissman.

    Combining this with the brain imagery revealed that children in families that received fewer welfare benefits from their state had a smaller hippocampus than average. This link was stronger in states with a high cost of living.
    The team found there was a 37 per cent reduction in the association between lower family incomes and a smaller hippocampus in states that gave each family receiving welfare payments on average $500 a month or more, compared with those that gave less than $500 a month.
    The link between receiving better welfare payments and a smaller hippocampus was also reduced by 19 per cent in states that had expanded Medicaid compared with those that hadn’t.
    Weissman says the results aren’t surprising, but it is still “shocking” to see how major government policy decisions have an actual effect on the brain.
    “If your goal is to have a fairer society where this doesn’t happen, then you should be pushing for policies that give more cash benefits to poorer families,” he says.
    “I think that this finding is tremendously important,” says Jane Barlow at the University of Oxford. “The research [in this field] now clearly shows social adversity can become biologically embedded during the prenatal period and early years of a child’s life as a result of the way in which they impact the neurological development of the child.”
    Reference: PsyArXiv, DOI: 10.31234/osf.io/8nhej

    More on these topics: More

  • in

    People occupied the Faroe Islands 300 years earlier than we thought

    By Chen Ly
    The Faroe Islandsdataichi – Simon Dubreuil/Getty Images
    People arrived on the Faroe Islands – a North Atlantic archipelago between Iceland, Norway and the British Isles – earlier than we thought, predating the arrival of Norse Vikings by about 300 years.
    The earliest direct evidence of human settlement on the Faroe Islands dates back to the arrival of the Vikings in around AD 800. But charred barley grains and cereal grain pollen on the islands dating back to around AD 500 indirectly hint that farming must have existed on the islands pre-Viking.
    Now, William D’Andrea at … More

  • in

    Languages could go extinct at a rate of one per month this century

    By Christa Lesté-Lasserre
    Researchers Lindell Bromham and Xia Hua analyse data on the Gurindji languageJamie Kidston/ANU
    Denser road networks, higher levels of education and even climate change are just a few of the factors that could lead to the loss of more than 20 per cent of the world’s 7000 languages by the end of the century – equivalent to one language vanishing per month.
    Based on a new model similar to those used for predicting species loss, a team of biologists, mathematicians and linguists led by Lindell Bromham at Australian National University in Canberra has determined that, without effective conservation, language loss will increase five-fold by 2100.
    “This is a frightening statistic,” says Bromham, adding that her team’s estimates are “conservative”.Advertisement
    “Every time a language is lost, we lose so much,” she says. “We lose a rich source of cultural information; we lose a unique and beautiful expression of human creativity.”
    Current language loss estimates vary considerably, with some predicting that up to 90 per cent of languages might no longer be spoken at the start of the next century.
    Bromham, an evolutionary biologist, and her colleagues suspected that by borrowing modelling techniques from studies on biodiversity loss, they might be able to capture a more statistically sound view of language diversity loss.

    They analysed 6511 languages that are still spoken or have ceased to be spoken – known as “sleeping” languages. They compared the languages’ endangerment status – based on which generations continue to learn and speak the language – with 51 variables related to the likes of legal recognition of the language, demographics, education policies, environmental features and socioeconomic indicators.
    They found that having other languages nearby isn’t a risk factor for language loss. In fact, says Bromham, many communities become multilingual when in proximity to other languages.
    On the other hand, their study suggested that being geographically isolated – living in a valley among high mountains on an island, for instance – doesn’t make people more likely to hold on to their language.
    Denser road networks were associated with higher levels of language loss on a global scale, says Bromham. That could be attributed to the fact that roads increase the level of commuting between rural areas and larger towns, leading to a greater influence of commerce and centralised government and the languages associated with them.

    Higher levels of education were also linked to greater loss of local language across the globe, says Bromham.
    “This is a very worrying result,” she says. “But I want to emphasise that we are not saying education is bad or that kids shouldn’t go to school. Rather, we’re saying that we need to make sure bilingualism is supported, so that children get the benefit of education without the cost to their own Indigenous language competency.”
    Marybeth Nevins, a linguist and anthropologist at Middlebury College in Vermont who wasn’t involved in the study, finds it “both troubling and understandable that schooling would predict endangerment”.
    “Schooling establishes a whole new set of practices designed to orient the student to the historically encroaching institutions,” says Nevins.
    While 20th century schools were based on single language learning, modern digital technology allows for multilingualism in government institutions, including schools, she says. “With adequate Indigenous language resources, [schooling] need not lead to endangerment.”
    The researchers also detected risk factors on a regional level, says Bromham. For example, larger pasture areas were associated with more language loss in parts of Africa, while in Europe, increased temperature seasonality was linked to greater endangerment, reflecting “language erosion” in parts of Scandinavia. More studies are needed to understand these connections, however, she adds.
    Holding onto local languages is critical, Nevins says, as it represents a way to maintain the history and culture of Indigenous people who were “forcibly incorporated into the capitalist world system”.
    “Language is a kind of proof of ancestral life, a powerful resource against political erasure, a means of reclamation,” she says. “For all of us, Indigenous languages are indispensable to understanding the nature, diversity and historic spread of human beings on our shared planet.”
    Journal reference: Nature Ecology and Evolution, DOI: 10.1038/s41559-021-01604-y

    More on these topics: More