Our project to document communities undergoing irreversible change took us to the frozen Zanskar river, which connects Ladakh and Zanskar in northern India.

Michał and I began our Before its Gone project at the start of 2017, with the aim of identifying, visiting and documenting locations and communities that are experiencing rapid (and irreversible) changes. The idea is to notice these changes so they can be remembered – and learned from.

Our first expedition was along the frozen Zanskar river that links Ladakh and Zanskar in the north Indian state of Jammu and Kashmir. When the temperature drops to -30C and mountain passes get covered with metres of snow, the Zanskar region becomes inaccessible for the winter, and the frozen river the only route connecting it with the rest of the world. For hundreds of years villagers across the mountains have used Chadar (the ice road trek) to get to school, work or to see a doctor. But that will change soon, as the Indian government plans to build a new road here. However, as our translator Stanzin Tundup told us, the road may not be the biggest engine for change.

A new virtual exhibition, What the Traveller Saw, the first of its kind by the Royal Geographical Society, marks the centenary of the birth of the writer and former Observer travel editor

Map-makers insert fake towns or trap-streets to catch out plagiarists, but Agloe, in New York state, took on a strange life of its own

In 2008, Argleton village in west Lancashire appeared on Google, complete with weather reports, a job site and an estate agent advertising houses for sale. Argleton vanished two years later. While its site was – and still is – a damp field in the middle of nowhere, it’s worth noting that Argleton is an anagram of G Not Real. Although Google never admitted to having created it, Argleton was a phantom settlement, planted as a trap.

In the world of digital mapping and cartography, snares to catch unwary plagiarists take the form of fake roads or places, known as “trap streets” or “paper towns”. For some, such as Lye Close or Noereal Road, the clue is in the name. (A real alleyway in Cardiff that served as a trap street in the 2014 Dr Who episode Face the Raven may, conversely, be the world’s only fictional fictional street.)

Elena Ferrante’s Naples, Umberto Eco’s medieval mysteries, EM Forster’s Tuscany … Italy comes alive through these great books
• 10 of the best novels about France

Long before Covid-19, there were always bad things in the press about Italy: corruption, mafia, bureaucracy. But, whenever I went, life seemed to work out even so. People may be poor but they still sit in the sun, drink and chat; music and culture are a birthright; the right seems in the ascendant but on the ground it feels blessed with far-seeing idealists – it has almost four times as much land under organic cultivation as the UK, for example. For now, my remedy to the withdrawal symptoms I feel is to visit via the written word. Many writers have set books in Italy – I was sorry to leave out Martin Amis’s The Pregnant Widow (Calabria), and Ali Smith’s How to be Both (Ferrara) – but here are my top 10 romanze italiane.

You may be familiar with these iconic images, but where did the events take place?

Where did this ship dock on 22 June 1948?

Felixstowe

Liverpool

Southampton

Tilbury

Where was this short-lived celebration?

Berlin

Budapest

Paris

Prague

Where did these three famously meet?

Geneva

Nuremberg

Potsdam

Yalta

Prime Minister Harold Wilson, with pipe and sunburnt legs, is on holiday where?

Anglesey

Isles of Scilly

Isle of Wight

Isle of Skye

This Pablo Picasso masterpiece depicts the carnage of the Spanish civil war in which region?

Asturias

Basque Country

Galicia

Catalonia

One of the most famous fights in history took place where?

Kinshasa

Las Vegas

Manila

Mexico City

This didn't end well. Where did it all start?

Belgrade

Sarajevo

Versaille

Vienna

This is somewhere between Ibiza and the Norfolk Broads – but where exactly?

Brixton

Camden

Hackney

Soho

It's a wrap! Where did this take place?

Berlin

Moscow

Paris

Stockholm

Gazza's tears made him the most famous person in the UK for a while, but where was this match played?

Milan

Naples

Rome

Turin

Where are these matchstick men and women?

Birmingham

Liverpool

Manchester

Newcastle

Fidel could always draw a crowd - where was this one?

Havana

Moscow

New York

Rio de Janeiro

Where did the Arab spring begin?

Egypt

Libya

Lebanon

Tunisia

The barefoot runner, the nasty fall ... but in which Olympics did this controversial race take place?

Moscow

Barcelona

Seoul

Los Angeles

Nelson Mandela was freed just over 30 years ago. Where was the jail he walked out of to greet cheering crowds?

Paarl, near Cape Town

Robben Island

Sun City, south of Johannesburg

Pretoria Central

Which English town did Malcolm X visit just nine days before he was assassinated?

Halifax

Northampton

Oldham

Smethwick

13 and above.

Past master!

9 and above.

You're an old hand at this

0 and above.

Best stick to Where's Wally!

5 and above.

You're history!

With no alternative but to explore the nature on their doorstep, three writers describe the joy of enforced slow travel

It is a place I’d discovered before the virus: a left-hand bend in a narrow stream, a couple of steps off the footpath. There is nothing remarkable there, or not at first glance. There are breeze blocks in the stream bed and plastic bags deeply embedded in the roots of an alder tree. With a few variations, it could be anywhere in Britain: the neglected corner of a city park, the back of a private garden, behind a national park cafe. It’s just one of those spots that no one ever thinks to stop at and, if not for Covid-19, I would not have begun visiting daily, pausing for a few breaths before continuing. I saw the first snowdrops appear there, followed by primroses; then they were swamped by wild garlic and wood anemone. One morning a weasel shot out of a hole under a root and sprinted up the opposite bank. It was the first of several surprises.

On Monday, officials in Los Angeles County released preliminary results of a study that suggest roughly 4.1% of the county's adult population has already had the coronavirus, which translates to between 221,000 and 442,000 people, factoring in adjustments for statistical margin of error.That's a much higher number than confirmed case counts indicate. (As of early Tuesday, the county had 13,816 cases.)"We haven't known the true extent of COVID-19 infections in our community because we have only tested people with symptoms and the availability of tests has been limited," Neeraj Sood, a professor of public policy at the University of Southern California and lead investigator on the study, said in a statement.Dr. Barbara Ferrer, LA County's public health director, said in a statement that the early results pointed to the possibility that many people may have been unknowingly infected.The study relies on rapid antibody tests, which have faced concerns about accuracy.And as The Mercury News reported, a Stanford study that also showed higher rates of infection in Santa Clara County drew criticism, although that was largely from statisticians over the study's methodology.Still, experts have emphasized that more studies will help develop a clearer picture of the virus's true prevalence.In any case, officials say it's crucial to continue to adhere to public health orders for many reasons, including that if more people are infected but asymptomatic, they could unknowingly spread the virus.______A change to the USNS Mercy's assignmentOn Monday, my New York Times colleague John Ismay and I spoke with leaders aboard the Navy hospital ship Mercy. Here's our dispatch about how their assignment has changed:In the weeks since the Mercy arrived at the Port of Los Angeles from San Diego, the hospital ship's mission has been clear: Serve as a crucial relief valve for patients who have not been infected with the coronavirus as hospitals fill up with patients sick with COVID-19.In recent days, the work has shifted, but that underlying goal has remained the same, the commanding officer of the ship's medical facility told us."FEMA, after having made an assessment of the situation and the local needs, has changed our assignment," said Capt. John Rotruck, the medical treatment team's commanding officer.The Mercy has sent 40 medical staff members -- two family practice doctors, 16 nurses and 20 corpsmen, including two respiratory technicians -- to help care for patients who do not have COVID-19 at a state-run skilled nursing facility in Orange County."We're essentially augmenting their staff," Rotruck said, as the anticipated surge in COVID-19 hospitalizations has, for now, been held at bay.The capacity onboard will decrease to 250 beds from 1,000, in large part as a result of that staffing shift -- although officials emphasized that leaves more than enough space at the rate the Mercy has been taking in patients.At the same time, leaders aboard the Mercy said that most of the military crew is moving off the ship to stay at nearby hotels to make it possible for crew members to keep their distance from one another as they work, eat and sleep.Sailors will be bused from their hotels to work their shifts aboard the ship.The move, which will decrease the number of crew members staying aboard the ship to roughly 140 from more than 800, came as the number of crew members who may have been exposed inched upward.By Monday, Rotruck said that nine crew members had tested positive for the coronavirus and that about 130 people were in quarantine because they had come into what federal officials define as close contact with at least one of those nine. All of those in quarantine tested negative.All nine who have COVID-19 were outpatients as of Monday -- meaning their cases were not severe enough to warrant being hospitalized -- and their conditions are being closely monitored.Rotruck said that moving crew members off the Mercy was unusual but not unprecedented.During a previous mission, for instance, some medical staff members flew to Vietnam to provide medical care to patients on the Mercy, although they did not sleep on the ship.However, Rotruck added, "We have not done it to this scale," with the vast majority of the ship's crew members living ashore.A spokesman said Friday that the crew aboard the Navy hospital ship Comfort, which is docked in New York City, recently moved most of its crew to hotels ashore as well.Rotruck said that the Mercy was ready to care for coronavirus-negative seniors living in nursing homes, as the governor has previously announced, but none had been transferred yet.Such nursing home patients may be moved to the Mercy for care through the typical intake process, if, for example, a facility needed to free up space to care for COVID-19 patients.As of Monday evening, the ship had taken in 65 patients total since it docked in San Pedro, and its crew had performed 22 surgeries. There were 13 patients still being treated onboard, meaning that 52 had been discharged.This article originally appeared in The New York Times.(C) 2020 The New York Times Company

The impact on human health of an invasive ragweed plant may be "seriously underestimated".

Last year's failed attempt to locate one of the world's great wrecks has lessons for future efforts.

How the ancient techniques of the world's indigenous people could help to combat climate change.

Swarm Technologies has struck an agreement with California-based Momentus for the launch of a dozen telecommunication satellites, each the size of a slice of bread, aboard a SpaceX Falcon 9 rocket in December. The December rideshare mission is the first of a series that Momentum plans to execute for Swarm, continuing into 2021 and 2022. Swarm plans to have 150 satellites launched over the next couple of years for a communication network in low Earth orbit. The first 12 SpaceBee satellites covered by the agreement announced today will be deployed into orbit from the Falcon 9. The inch-thick satellites fit… Read More

Seattle-based Spaceflight Inc. has signed an agreement to secure most of the payload mass on a Firefly Aerospace rocket that's due to lift off from California's Vandenberg Air Force Base in 2021. The agreement, announced today, establishes Spaceflight as the mission's anchor customer and commits the company to managing the logistics for multiple payloads on the Firefly Alpha rocket. That should help Firefly maximize use of the rocket's 630-kilogram (1,389-pound) capacity for a launch to sun-synchronous orbit. Texas-based Firefly Aerospace is planning to launch the Alpha on its maiden flight from Vandenberg later this year. The company suffered a setback in… Read More

Scientists map ancient underwater landslides in the region chosen for Jakarta's replacement.

The health of insect populations globally is far more varied than previous research suggested.

One month after the debut of the COVID-19 Open Research Dataset, or CORD-19, the database of coronavirus-related research papers has doubled in size – and has given rise to more than a dozen software tools to channel the hundreds of studies that are being published every day about the pandemic. In a roundup published on the ArXiv preprint server this week, researchers from Seattle's Allen Institute for Artificial Intelligence, Microsoft Research and other partners in the project say CORD-19's collection has risen from about 28,000 papers to more than 52,000. Every day, several hundred more papers are being published, in… Read More

The veteran telescope celebrates three decades in orbit with a colourful image of star formation.

New techniques are being used to transform images from Hubble into spectacular 3D visualisations.

The discovery that the badger-like animal lived alongside dinosaurs challenges ideas about mammals.

How African researchers are using the continent's languages to help spur innovation in Artificial Intelligence.

US space agency satellites follow the melting trends in Antarctica and Greenland over 16 years.

Bill Gates has been big on vaccines since before the start of the coronavirus pandemic, but in a new blog posting, the Microsoft co-founder and billionaire philanthropist says the only way to end the pandemic for good is to offer a vaccine to almost all of the planet's 7 billion inhabitants. That's big. "We've never delivered something to every corner of the world before," Gates notes. It's especially big considering that a vaccine hasn't yet been approved for widespread use, and that it may take as long as a year to 18 months to win approval and start distribution. Some… Read More

NASA has selected teams led by Blue Origin, Dynetics and SpaceX to develop lunar landing systems capable of putting astronauts on the moon by as early as 2024. "We want to be able to go to the moon, but we want to be a customer," NASA Administrator Jim Bridenstine told reporters today during a teleconference. "We want to drive down the costs, we want to increase the access, we want to have our partners have customers that are not just us, so they compete on cost and innovation, and just bring capabilities that we've never had before." Fixed-price contracts totaling… Read More

A satellite mission that bounces laser light off the ice sheets of Antarctica and Greenland has found that hundreds of billions of tons' worth of ice are being lost every year due to Earth's changing climate. Scientists involved in NASA's ICESat-2 project report in the journal Science that the net loss of ice from those regions has been responsible for 0.55 inches of sea level rise since 2003. That's slightly less than a third of the total amount of sea level rise observed in the world's oceans over that time. To track how the ice sheets are changing, the ICESat-2… Read More

For the first time, Virgin Galactic's SpaceShipTwo rocket plane flew free in the skies over New Mexico's Spaceport America, its new base of operations. The SpaceShipTwo plane, known as VSS Unity, has made rocket-powered flights beyond the 50-mile space milestone during tests at California's Mojave Air and Space Port, but today's unpowered test flight was the first to be flown from Spaceport America. "Today's VSS Unity flight is another exciting milestone for Virgin Galactic's progress in New Mexico," Dan Hicks, executive director of the New Mexico Spaceport Authority, said in a news release. "We are extremely happy and proud of… Read More

Native woodlands can resist the spread of invasive species if they block light reaching the ground.

Everything is in readiness for the first mission to send humans into orbit from U.S. soil since NASA retired the space shuttle fleet in 2011 – from the SpaceX Crew Dragon capsule that will take two astronauts to the International Space Station, to the parachutes that will bring them back down gently to an Atlantic Ocean splashdown, to the masks that NASA's ground team will wear in Mission Control. The fact that the launch is coming in the midst of the coronavirus pandemic has added a weird and somewhat wistful twist to the history-making event. "That certainly is disappointing," NASA… Read More

Scientists predict the explosive behaviour of two supermassive black holes almost to the hour.

NASA Administrator Jim Bridenstine has confirmed in a tweet that the space agency is working with movie star Tom Cruise on a project that involves shooting a film on the International Space Station. Deadline Hollywood reported on Monday that a space movie project involving NASA and SpaceX is in the works, but that "no studio is in the mix at this stage." Bridenstine followed up with a tweet saying that NASA was "excited" to be working with Cruise, and explaining that "we need popular media to inspire a new generation of engineers and scientists to make NASA's ambitious plans a… Read More

Two Seattle-area space ventures — Tethers Unlimited and Rocket Propulsion Systems — are among 124 businesses receiving $750,000 Phase II grants from NASA's Small Business Innovation Research program. The two-year grants, announced today, support the further development of technologies that can benefit future space missions as well as life on Earth. All of the recipients, hailing from 31 states in all, received $125,000 Phase I grants during earlier rounds of funding. "We are encouraged by the ingenuity and creativity we’ve seen from these companies in their Phase I work," Jenn Gustetic, NASA's SBIR program executive said in a news release.… Read More

Areas such as India, Australia and Africa are predicted to be among the worst affected.

The North Magnetic Pole has been racing across the top of the world, from Canada towards Siberia.

NASA has awarded the University of Washington a $499,864 grant to develop a competition that calls on students to turn a simulated lava tube into a habitat suitable for harboring humans on the moon or Mars. The exploration and habitation skills competition will be funded as part of NASA's Artemis Student Challenges program, which plays off the themes of the Artemis moon program to inspire the next generation of explorers and engineers. The competition will involve navigating a rover through a facsimile lava tube and surface structures, generating maps, identifying valuable resources and deploying an airtight barrier to seal the… Read More

The third time's the charm for the Allen Institute for Brain Science's 3-D atlas of the mouse brain. Version 3 of the atlas, known as the Allen Mouse Brain Common Coordinate Framework or CCFv3, is the subject of a research paper published today in the journal Cell. It builds on a partial brain map that focused on the mouse cortex and was released in 2016. Previous versions of the atlas were rendered with lower-resolution 3-D maps. The latest high-resolution maps are fine enough to pinpoint the locations of individual brain cells — which is crucial for interpreting datasets that contain thousands… Read More

The following is a brief roundup of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for COVID-19, the illness caused by the virus. A new antibody test is highly accurate at determining whether people have been infected with the novel coronavirus, according to a study published on Friday in The Journal of Clinical Microbiology. Researchers at the University of Washington School of Medicine found the test, manufactured by Abbott Laboratories, had a specificity rate of 99.9% and a sensitivity rate of 100%, suggesting little chance of incorrectly diagnosing a healthy person as having been infected and virtually no chance of a false negative readout.

The Hawaii-based Gemini telescope produces a super-sharp picture of the gas giant in the infrared.

The ancient Roman city’s House of the Lovers has reopened to the public 40 years after it was severely damaged in 1980 by an earthquake

• Pompeii’s House of Lovers reopens to public

There are decisions being made right now that could have an effect on global populations for generations to come. As part of this project, we commissioned an artist to investigate some of the themes raised in the podcasts. This work of fiction imagines a future where gene editing has become mainstream and discusses the moral, ethical and political divides that this might create

As Elon Musk's Starlink and Jeff Bezos's Project Kuiper race to create high-speed internet using satellites orbiting Earth, there's a small problem that could get in the way: debris. From dead spacecraft that have been around since the dawn of the space age to flecks of paint smashing windows on the International Space Station, rubbish is clogging up our orbits. And with objects moving as fast as 15,500mph (25,000 kmph), the satellite services we've come to depend on are at constant risk of collision. So how to fix the problem with junk in space? Ian Anderson investigates

A supermoon happens when the moon reaches the closest point to Earth in its 27-day orbit and it happens to be full, which usually occurs once a year. We asked you to share your shots of April’s lunar spectacular. Here’s a selection of our favourites

Australian photographer Christian Bowman from Queensland was among Australians waking up before the sun rose to capture images of the Eta Aquarids meteor shower

• Australians told to look to the skies early Wednesday for best views

Exclusive: report criticising government lockdown proposals heavily redacted before release

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Government scientific advisers are furious at what they see as an attempt to censor their advice on government proposals during the Covid-19 lockdown by heavily redacting an official report before it was released to the public, the Guardian can reveal.

The report was one of a series of documents published by the Scientific Advisory Group on Emergencies (Sage) this week to mollify growing criticism about the lack of transparency over the advice given to ministers responding to the coronavirus.

Lawyers say failure to provide adequate PPE may amount to corporate manslaughter

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The deaths of more than 50 hospital and care home workers have been reported to Britain’s health and safety regulator, which is considering launching criminal investigations, the Guardian has learned.

The Health and Safety Executive (HSE), which investigates the breaking of safety at work laws, has received 54 formal reports of deaths in health and care settings “where the source of infection is recorded as Covid-19”. These are via the official reporting process, called Riddor: Reporting of Injuries, Diseases and Dangerous Occurrences.

Sage told widespread use of antibody tests could lead to criminal behaviour, papers reveal

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Downing Street’s scientific advisers feared people might intentionally seek to contract coronavirus and that a black market in fake test results could emerge if employers allowed workers to return only when they had a positive antibody test.

The Scientific Advisory Group for Emergencies, known as Sage, was warned last month by its behavioural psychology subgroup that the widespread introduction of antibody tests could lead to a range of potentially dangerous and even criminal “negative behavioural responses” if not handled well.

Recent deaths have stood out, but scientists say they must be interpreted with caution

Amid the steady stream of stories on the lives lost to coronavirus are cases that stand out as remarkable. In the past month, at least two pairs of twins have died in Britain and two pairs of brothers, all within hours or days of each other. But do the deaths point to genetic factors that make some more likely than others to succumb to the disease?

Most scientists believe that genes play a role in how people respond to infections. A person’s genetic makeup may influence the receptors that the coronavirus uses to invade human cells. How resilient the person is to the infection, their general health, and how the immune system reacts will also have some genetic component.

Studies have examined some of the more unusual signs of Covid-19

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The World Health Organization lists the most common symptoms of Covid-19 as fever, tiredness and a dry cough. Others include a runny nose, sore throat, nasal congestion, pain, diarrhoea and the loss of sense of taste and/or smell. But there are also other more unusual symptoms that patients have presented.

As the coronavirus outbreak continues to be our focus on Science Weekly, we also want to try look at other science stories. In this episode, Nicola Davis speaks to Dave Krause about the 66-million-year-old fossil of a cat-sized mammal dubbed ‘crazy beast’. A giant in its day, we hear how this now extinct branch of mammals – known as Gondwanatherians – offers new insights into what could have been

Official figures show that wide disparity not just due to health and economic differences

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Black people are more than four times more likely to die from Covid-19 than white people, according to stark official figures exposing a dramatic divergence in the impact of the coronavirus pandemic in England and Wales.

The Office of National Statistics found that the difference in the virus’s impact was caused not only by pre-existing differences in communities’ wealth, health, education and living arrangements.

‘Challenge’ studies would deliberately give coronavirus to healthy volunteers

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Controversial trials in which volunteers are intentionally infected with Covid-19 could accelerate vaccine development, according to the World Health Organization, which has released new guidance on how the approach could be ethically justified despite the potential dangers for participants.

So-called challenge trials are a mainstream approach in vaccine development and have been used in malaria, typhoid and flu, but there are treatments available for these diseases if a volunteer becomes severely ill. For Covid-19, a safe dose of the virus has not been established and there are no failsafe treatments if things go wrong.

Ontario Premier Doug Ford dropped by his cottage last month, days after asking the province’s residents to stay away from theirs. His office says Ford "drove alone" and was there for less than an hour to check on construction.

A man whose wife was killed in the April mass shooting in Nova Scotia is the plaintiff named in a proposed class-action lawsuit against the estate of the deceased gunman, denturist Gabriel Wortman.