# I am the Watcher. I am your guide through this vast new twtiverse.
# 
# Usage:
#     https://watcher.sour.is/api/plain/users              View list of users and latest twt date.
#     https://watcher.sour.is/api/plain/twt                View all twts.
#     https://watcher.sour.is/api/plain/mentions?uri=:uri  View all mentions for uri.
#     https://watcher.sour.is/api/plain/conv/:hash         View all twts for a conversation subject.
# 
# Options:
#     uri     Filter to show a specific users twts.
#     offset  Start index for quey.
#     limit   Count of items to return (going back in time).
# 
# twt range = 1 8122
# self = https://watcher.sour.is?uri=https://feeds.twtxt.net/New_scientist/twtxt.txt&offset=5622
# next = https://watcher.sour.is?uri=https://feeds.twtxt.net/New_scientist/twtxt.txt&offset=5722
# prev = https://watcher.sour.is?uri=https://feeds.twtxt.net/New_scientist/twtxt.txt&offset=5522
Tropical tree species that grow far apart can better avoid ‘enemies’**
Trees in rainforests that grow far away from others of the same species may be more likely to survive than close neighbours if they're protected from insects and fungal pathogens that target those specific trees ⌘ Read more
Canada's wildfire emissions this year have doubled the annual record
The unprecedented scale of wildfires in Canada since May has already produced double the carbon emissions of the previous record-holding year as well as displacing tens of thousands of people from their homes ⌘ Read more
Astronomers have spotted inexplicably bright light coming from the sun
Extraordinarily high-energy gamma rays have been found emanating from the sun, and none of our theoretical models can explain why there are so many of them ⌘ Read more
Thin reflective film that mimics butterfly wings can keep cars cool
A thin, multi-layered film inspired by the structure of vibrant blue butterfly wings could help vehicles reduce energy used for cooling ⌘ Read more
Bees miss out on sleep if they are exposed to light at night
Honeybees exposed to continuous artificial light get much less sleep, and this may affect their ability to pollinate plants ⌘ Read more
Neuron-like machinery helps anemones decide when to sting
Anemones have special cells that shoot stinging barbs for protection or to hunt prey – decisions about when to release them and where to aim is based on the activity of calcium ion channels similar to those in human neurons ⌘ Read more
Two changes could nearly halve carbon footprint of US school lunches
US schools could nearly halve the carbon emissions of the lunches they offer by only serving beef once a month and replacing the highest emitting meal a week with a vegan option. ⌘ Read more
Gold flakes glow when they are bathed in light and now we know how
Shooting powerful lasers at thin gold flakes has revealed how the precious metal generates its own faint glow – and might help us better control chemical reactions used in energy storage ⌘ Read more
ADHD linked to disrupted brain signals involved in focusing attention
Disrupted brain signals have previously been linked to ADHD in children, with the link now being found in young adults, improving researchers' understanding of the condition ⌘ Read more
AI voices are hard to spot even if you know audio might be a deepfake
Deepfake audio can trick people even when they know they might be hearing an AI-generated voice – AI-powered detectors may need to step up to help people distinguish deepfakes from authentic human speech ⌘ Read more
Ancient whale might have been the heaviest animal that ever lived
A whale that lived around 39 million years ago could have weighed as much as 340 tonnes, according to analysis of a partial skeleton found in Peru ⌘ Read more
Chemical reaction used in cooking may have helped complex life evolve
The Maillard reaction, which generates flavoursome compounds during cooking, probably helps lock carbon away in the seabed, boosting oxygen in the atmosphere ⌘ Read more
Gene variant that seems to protect against HIV may lead to new drugs
A different form of a gene called CHD1L found in people with African ancestry has been linked to lower HIV levels in people infected with the virus, and the discovery could open the door to improved treatments ⌘ Read more
Does space-time remember? The search for gravitational memory
Detecting the permanent imprints left by colliding black holes would reveal a universe saturated with infinite symmetries – and narrow the possibilities for a theory of quantum gravity. ⌘ Read more
Scientists race to test claimed room-temperature superconductor
Researchers are moving quickly to test if a material called LK-99 really is a superconductor at room temperature and pressure. Several labs have already announced results ⌘ Read more
Your gut microbiome is linked to your fitness and biological age
Altering the gut microbiome via probiotics could one day help people to maintain a certain level of fitness and reduce the rate of their biological ageing ⌘ Read more
Artificial spider silk could help us harvest drinking water from air
Helical bumps on artificial fibres can carry 2000 times more water than the volume of the bumps themselves, which could help people harvest drinking water from the air ⌘ Read more
Ancient Babylonian arson in Jerusalem revealed by chemical clues
By analysing charred remains of a Jerusalem building, archaeologists have uncovered details of how it was burned down by Babylonian invaders in 586 BC ⌘ Read more
Oldest adult jellyfish fossil ever found is over 500 million years old
A fossil discovered in Canada reveals that jellyfish developed the swimming stage of their life cycle more than half a billion years ago ⌘ Read more
NASA has regained contact with Voyager 2 after losing it for a week
After accidentally turning the Voyager 2 spacecraft away from Earth and losing contact with it, NASA engineers have now heard a “heartbeat signal” that shows it is still okay ⌘ Read more
Lead exposure linked to higher risk of engaging in criminal behaviour
Higher exposure to lead in childhood is associated with a greater likelihood of criminality, a review of 17 studies has found, but whether the element is causing the behaviour rather than just being associated with it is unknown ⌘ Read more
Is it possible to drill a hole straight through a planet?**
Could we bore a hole through the centre of Earth? What would it be like to fling yourself through it? The Dead Planets Society podcast digs deep into the potential hazards ⌘ Read more
The best new science fiction books of August 2023
From speculative novellas by Josh Malerman to a first venture into science fiction from H is for Hawk author Helen Macdonald, August brims with sci-fi potential, says culture editor Alison Flood ⌘ Read more
Our solar system might be 1.1 million years older than we thought
A new analysis of small flecks in meteorites calculates the age of the solar system as 4.5684 billion years old, rather than 4.5673 billion ⌘ Read more
Essential molecule for life spotted floating in space for first time
Carbonic acid, an important component of amino acids, has been seen in a cloud of gas near the centre of the Milky Way, which could help us explain how life came to be on Earth ⌘ Read more
Arctic foxes help create habitats as ‘gardeners’ of the tundra
Satellite images support the claim that Arctic foxes promote the growth of the lush vegetation seen around their dens ⌘ Read more
Nightingales match the pitch of their rivals in singing duels
Male nightingales respond to each other’s songs by whistling back at the same pitch when competing for territory, and they even copy the pitch of artificial whistle sounds ⌘ Read more
What will the UK push for more North Sea oil and gas really achieve?**
The UK’s plan to issue new oil and gas licences will make a minimal impact on North Sea production levels – but it will dent the country's reputation as a climate leader ⌘ Read more
Euclid space telescope sends back amazing first images of the cosmos
The European Space Agency’s Euclid telescope launched on 1 July, and now it has delivered its first stunning pictures of stars and galaxies across the cosmos ⌘ Read more
Which dietary supplements actually work and which should you take
From vitamin D to turmeric extracts and probiotics, nutritional supplements are a booming industry. But what is the evidence behind the claimed benefits? ⌘ Read more
Swimming behind someone cuts drag by up to 40 per cent
Swimmers in open water races can reduce the amount of drag forces they experience by swimming behind or at the hip level of another swimmer ⌘ Read more
Room-temperature superconductors: Here's everything you need to know
Truly convenient materials that can conduct electricity perfectly have long been sought after by researchers, but their history is one of difficult experiments, theoretical puzzles and scientific controversy ⌘ Read more
Rats have a 'laugh centre' in their brains that responds to tickling
A region of the midbrain in rodents appears to be instrumental in enabling rats to engage in laughter and play ⌘ Read more
Women may age fastest during their 30s and 50s
A woman may be most likely to give birth in her 30s and go through the menopause in her 50s, with these life events causing hormonal changes that may accelerate ageing ⌘ Read more
Intermittent fasting could boost immunity in addition to melting fat
Immune cells are more effective at fending off pathogens when they use ketones – which are produced during fasting – rather than glucose for energy ⌘ Read more
Loss of smell may be an early sign of Alzheimer's in at-risk people
People who carry a genetic variant that raises the risk of Alzheimer's disease may start to lose their sense of smell before they experience any decline in cognitive function ⌘ Read more
Mathematicians find 27 tickets that guarantee UK National Lottery win
Buying a specific set of 27 tickets for the UK National Lottery will mathematically guarantee that you win something ⌘ Read more
These are the five most shocking climate records this week
From "hot tub" sea temperatures in Florida to wildfires across Greek islands, we are seeing a record-breaking season of climate extremes ⌘ Read more
AI news recap: While Hollywood strikes, is ChatGPT getting worse?**
There is anger over a Netflix AI job paying up to $900,000, coming as actors are still striking over the use of AI in film and TV.  In other AI news, problems with training data can cause glitches or make chatbots more racist ⌘ Read more
Ancient make-up in Chinese tomb includes concealer and skin lightener
Two cosmetic products have been identified from residues in the tomb of a non-noble woman who lived in China 2000 years ago, suggesting the widespread use of make-up ⌘ Read more
Shirt woven with metal could help medical implants communicate
Transmitting data around the body can be tricky, but a shirt with a metal upgrade could help ⌘ Read more
Formula E unveils racing car made from electronic waste
A Formula E racing car made from iPhones, chargers, batteries and single-use vapes has been built in the UK to highlight the increasing problem of electronic waste ⌘ Read more
People in the US passed swine flu to pigs nearly 400 times in 12 years
A particular strain of swine flu was first recorded in people in 2009. Since then, humans have passed the strain to pigs at least 370 times in the US ⌘ Read more
Origin of Indo-European languages traced back to 8000 years ago
An analysis of related words in 161 languages suggests their shared roots lie in the Middle East – a conclusion that also fits with DNA evidence ⌘ Read more
Is geological hydrogen a green solution to our energy needs?**
Plans to extract hydrogen from underground reservoirs have been presented as climate-friendly, but it is still unclear just how much they could increase global warming ⌘ Read more
Targeted mRNA delivery will lead to cheaper cures for many diseases
A technique for delivering mRNAs to blood stem cells should enable better and cheaper treatments for conditions from sickle cell disease to ageing ⌘ Read more
Supersonic cracks seem to be breaking the laws of physics
An experiment with elastic gels broke the theoretical speed limit for how fast cracks can move through materials, raising new questions about the physics of fractures ⌘ Read more
UFO hearing: Why do so many people believe aliens have visited Earth?**
Despite testimony by David Grusch to US Congress about "non-human biologics" and UFO crash sites, there is still no evidence aliens have ever come to Earth. Why are people taking such claims seriously, asks Jacob Aron ⌘ Read more
Young mouse blood extends lives of older ones while rejuvenating them
Surgically attaching old mice to young mice to exchange their blood has previously been shown to rejuvenate the older individuals' brains, livers and muscles. Now, it has been shown to also extend their lifespan, even after the animals have been detached ⌘ Read more
Stars have an innate twinkle – and now you can listen to it
Simulations of the rippling that occurs inside stars has made it possible to turn this innate twinkling into audio ⌘ Read more
River pollution 'offsets' for homes in England and Wales may not work
Some home builders in England and Wales are allowed to buy nutrient credits to "offset" the pollution caused by new houses, but their efficacy is in doubt ⌘ Read more
How cancer-fighting immune cells could be made safer and more powerful
Engineered immune cells called CAR T-cells are highly effective against cancer but they are also dangerous – but an upgrade could make them safer and more effective ⌘ Read more
Cannabis poisoning cases quadruple in children after legalisation
The risk of cannabis poisoning in children increased fourfold after it became medically or recreationally legal in different locations, primarily due to edibles ⌘ Read more
Magnetic-levitation device separates and sorts viruses from the air
Viruses and bacteria floating in the air can be sorted for further analysis using magnets and the metal gadolinium ⌘ Read more
Aspirin raises the risk of brain bleeds and may not prevent strokes
Doctors sometimes recommend older people take a low dose of aspirin to reduce their risk of the most common type of stroke, but a study suggests this is no more effective than a placebo and raises the risk of brain bleeds ⌘ Read more
The start of spring in the Arctic is increasingly unpredictable
Instead of coming earlier and earlier as the climate warms, the onset of spring in the Arctic is now extremely variable from year to year, bringing challenges to wildlife ⌘ Read more
Driverless cars could get AI-powered heat vision for nighttime driving
Self-driving vehicles that struggle with recognising objects at night could get a boost from a heat-assisted detection and ranging system ⌘ Read more
Honey made by ants could treat some bacterial and fungal infections
An ant species in Australia makes honey that killed some bacterial and fungal infections in the lab, raising hopes that its properties could be used in new drugs ⌘ Read more
Newly discovered dinosaur roamed South-East Asia 200 million years ago
Fossils unearthed in Thailand have been identified as a new species of dinosaur that fed on plants and roamed the wilds of South-East Asia ⌘ Read more
Unique egg patterns help drongos avoid getting duped by cuckoos
Fork-tailed drongos produce individualised patterns on their eggs, which may help them recognise their own and reject 94 per cent of cuckoo eggs ⌘ Read more
Water seen in young planet system shows Earth may have always been wet
The James Webb Space Telescope has spotted water vapour in an area where planets may be forming, which could present an answer to the debate over how Earth got its water ⌘ Read more
Building things with wood may not be as climate-friendly as thought
Wood is a versatile construction material that could be used to replace carbon-intensive steel and concrete in construction, however the emissions involved may have been underestimated ⌘ Read more
The science and side effects of the drugs Ozempic and Wegovy
From how well they work to side effects such as hair loss, here’s the skinny on new weight loss injections that work by blocking a hormone that normally reduces appetite ⌘ Read more
How does ChatGPT work and do AI-powered chatbots “think” like us?**
The large language models behind the new chatbots are trained to predict which words are most likely to appear together – but “emergent abilities” suggest they might be doing more than that ⌘ Read more
What generative AI really means for the economy, jobs and education
Even with the capabilities they have today, the new generation of AIs will profoundly reshape the world, and your life, over the next decade. Here’s how ⌘ Read more
Vital Atlantic Ocean current could collapse as soon as 2025
A study warns that the Atlantic meridional overturning circulation is close to a tipping point that would severely disrupt the climate – but other researchers say the timing is impossible to predict ⌘ Read more
Best science fiction films about space, according to an astrophysicist
From 2001: A Space Odyssey to WALL-E, Erika Nesvold picks her favourite sci-fi films set in space (and explains why E.T. missed out) ⌘ Read more
Stunning photo of a young star hints how Jupiter-like planets form
This mesmerising image of star V960 Mon spitting out gas jets to create arms larger than our entire solar system shows how massive planets may come together via gravitational instability ⌘ Read more
Oppenheimer: What led to the physicist's downfall?**
J. Robert Oppenheimer was instrumental in creating the first atomic bomb but afterwards spent decades campaigning against it. Christopher Nolan’s new film focuses on these later years ⌘ Read more
Some people are aware during CPR and can remember the experience
In the most detailed study yet of awareness during cardiopulmonary resuscitation, nearly half those who survived reported some kind of hazy memories, dreams or perceptions ⌘ Read more
July’s heatwave was made 1000 times more likely by climate change
Climate change made the heatwaves in North America and Europe at least 1000 times more likely and the heatwave in China around 50 times more likely ⌘ Read more
GPT-4: Is the AI behind ChatGPT getting worse?**
The AI that powers ChatGPT appears to be performing less well at mathematical problems than it was just a few months ago ⌘ Read more
Your hands are probably about twice as heavy as you think they are
Experiments show that people consistently underestimate the weight of their own hands – a perceptual quirk that could be important for designing prosthetics ⌘ Read more
Psychedelics show promise for treating anorexia in early trials
Small studies suggest that psilocybin, the psychoactive compound in magic mushrooms, may reduce the severity of eating disorders and increase people’s motivation to recover from the condition ⌘ Read more
The slippery quest to invent a safer, more effective sunscreen
Concerns over chemical sunscreens harming coral reefs and maybe even our health are inspiring a new generation of sun lotions that would offer greater protection that endures ⌘ Read more
Most plant-based milks have less protein and calcium than cow's milk
Plant-based milks made from almonds, oats, rice and soya beans generally contain fewer nutrients than cow's milk ⌘ Read more
8 healthy habits linked to living decades longer
A study of more than 700,000 people found that adopting eight healthy habits by age 40 could extend life expectancy by more than two decades ⌘ Read more
Fears of record-breaking El Niño event this year raise climate alarms
We don't yet know how strong the developing El Niño climate pattern will be, but even a weak one risks severe global disruption ⌘ Read more
Earth is coated in ancient space dust that could be from the moon
A 33-million-year-old layer of Earth's crust is laced with helium-3, which is normally only found in space. Now we might have an explanation for how it got there ⌘ Read more
Your genes may influence how much fruit, fish or salt you eat
Nearly 500 regions of the human genome appear to directly impact your dietary intake by affecting perception of flavours and food preferences ⌘ Read more
Revealed: The five foods that are key to maintaining good gut health
Fruits and vegetables contain prebiotics, which act as a food source for gut microbes and may boost overall health ⌘ Read more
Ancient utensils bear traces of 2000-year-old Vietnamese curry
Remnants of eight spices were found on a sandstone slab from an archaeological site in Vietnam, showing the early adoption of ingredients and techniques from south Asia ⌘ Read more
NASA probably discovered quakes on Mars in the 1970s
The Viking 1 and 2 Mars probes looked for evidence of quakes on Mars, but failed to find anything definitive. Now a reanalysis suggests Viking 2 found marsquakes after all ⌘ Read more
Deepfake videos create false memories – but so do fake articles
After watching deepfake movie clips that inserted Will Smith into The Matrix or put Chris Pratt in the role of Indiana Jones, 70 per cent of people thought the movie remakes actually existed ⌘ Read more
Reaching net zero will cost billions more due to interest rate rises
It is vital that we clean up our energy sources and shift away from fossil fuels, but rising interest rates mean green energy projects are becoming more expensive and risk being cancelled ⌘ Read more
Newton’s first law appears to break down in the quantum realm
Newton’s first law of motion says that particles move in straight lines unless influenced by a force but a new experiment shows that the quantum version of that assumption fails for quantum particles of light ⌘ Read more
Shortage of male turtles could be solved by splash of cold seawater
Over 99 per cent of green turtles born on beaches in the northern Great Barrier Reef are now female due to nest overheating, but cooling their nests with seawater may help to rebalance the sex ratio ⌘ Read more
GPS could predict earthquakes two hours ahead, but there's a catch
An analysis of GPS data has revealed a slow and otherwise undetectable slip of tectonic plates that begins two hours before an earthquake - but detecting this in advance would require more accurate sensors ⌘ Read more
Widely-used chemicals can now be made without using toxic gas
Chemicals containing fluorine that are used in pharmaceuticals, fertilisers and batteries can now be made without the release of toxic hydrogen fluoride gas as part of the process ⌘ Read more
Deep-brain probe can read a rat's brain without surgical implants
A tiny probe that can be moved deep into the brain via blood vessels could one day monitor brain activity in people with epilepsy or Parkinson's disease ⌘ Read more
Much of Greenland's ice could melt even if world doesn't get warmer
Even if the planet doesn't get any warmer than it is now, melting ice in Greenland could add at least 1.5 metres to the global average sea level and possibly as much as 5 metres ⌘ Read more
Obesity may damage immune cells that prevent psoriasis
Mice with obesity have fewer immune cells in their skin that protect against psoriasis-related inflammation, potentially explaining why obesity increases the risk of the condition ⌘ Read more
Two new sabretooth cat species identified from fossils in South Africa
Two sabretooth cat species that lived 5 million years ago had 10-centimetre-long fangs, which they probably used to hunt prey in forested landscapes like leopards do ⌘ Read more
Postmenopausal orcas seem to prevent sons from getting into fights
Male orcas with a surviving postmenopausal mother have fewer signs of injury than those whose mothers are dead or still reproducing ⌘ Read more
No clear evidence that meditation or mindfulness makes you happy
Commonly recommended ways to boost our mood – which can also include expressing gratitude or spending time in nature – are often based on small, poorly designed studies ⌘ Read more
Basking sharks are one of the few warm-blooded species of fish
The ability to warm up parts of their body may help basking sharks migrate long distances and overcome drag when they’re feeding ⌘ Read more
How to spot the 2023 Perseid meteor shower wherever you are
The Perseids are a major meteor shower - here is your guide to spotting them in July and August 2023 ⌘ Read more
Lego robot used to make DNA structures for tiny machines more quickly
A robot made of Lego can speed up and simplify building tiny structures out of DNA that could be used as biological machines ⌘ Read more
Ancient humans hunted animals by throwing a stick like a boomerang
Analysis of a wooden stick thought to be around 300,000 years old suggests it was designed to be thrown rotationally, rather than as a spear ⌘ Read more
Two-faced star seems to have one hydrogen side and one helium side
A strange star more than 1300 light years away appears to have two sides with completely different compositions, and astronomers aren’t sure how it ended up that way ⌘ Read more