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Brenda Francis settled into the Kingdom Hall in Calhoun, Georgia, in mid-March, surrounded by dozens of familiar faces. Signs cautioning against shaking hands and hugging were posted around the room. It felt weird to her but was certainly understandable with the threat of an outbreak looming. She herself already had stocked up on some masks and gloves.When it came time for members to comment on the Bible readings, Francis noticed the microphones typically passed around the room were now attached to the end of long poles.That was the moment Francis, a 69-year-old widow living in a small, semirural community in the South, realized just how dramatically the coronavirus pandemic was about to reshape her spiritual life, more than anything ever had in the 47 years since she was baptized as a Jehovah's Witness.A few days after the boom mics came out in the Kingdom Hall, word came down from the group's headquarters that, in the interest of safety, Jehovah's Witnesses should stop witnessing, its practice of in-person attempts at converting people to the group."People would be so receptive right now," she said of her ministry, "and we can't knock on doors."Across the country, most religious groups have stopped coming together in large numbers to pray and hold services, in keeping with stay-at-home orders. They have improvised with online preaching and even drive-in services as the faithful sit in cars. Mormons have stopped going door to door in the United States and called home many missionaries working abroad.Jehovah's Witnesses -- with 1.3 million U.S. members who hand out brochures on sidewalks and subway platforms and ring doorbells -- are one of the most visible religious groups in the nation. Members are called on to share Scriptures in person with nonmembers, warning of an imminent Armageddon and hoping to baptize them with the prospect of living forever.The decision to stop their ministries was the first of its kind in the nearly 150 years of the group's existence. It followed anguished discussions at Watchtower headquarters, with leaders deciding March 20 that knocking on doors would leave the impression that members were disregarding the safety of those they hoped to convert."This was not an easy decision for anybody," said Robert Hendriks, the group's U.S. spokesman. "As you know, our ministry is our life."It was for Francis, who became a Jehovah's Witness when she was in her 20s with a newborn and a member knocked on her door in Tennessee and persuaded her to attend a Kingdom Hall meeting. She converted. Her family was angry that she no longer came to holiday gatherings; the group doesn't believe in celebrating holidays or birthdays. Jehovah's Witnesses became her new family.The more she studied the Bible, the more she came to believe it led to eternal life. She needed to spread the word.Showing up cold on someone's doorstep didn't come naturally. She was so shy that once, she recalled, her high school principal -- "this huge Goliath guy" -- stood on her foot in a crowded hallway; she didn't say a word but waited in pain for him to move. She had considered a career going door to door as a Mason Shoes saleswoman, but after receiving a catalog, she never mustered the courage to even try to make a sale.To her, witnessing was different. Her faith had helped her stop smoking. It gave her meaning. She had seen people clean up their lives after attending meetings at Kingdom Hall."By the time I did go to doors, I was so convinced this was the right thing to do that I had no nervousness," Francis said.Through the years, she learned to build her pitch around a theme -- a Bible verse or a current event -- and tried not to sound rehearsed."You don't want to sound like a robot," she said. "You work from the heart. You want enthusiasm."Early this year, Francis had been seeing reports on Facebook about the virus sweeping through Wuhan, China. The host of a show she watched on YouTube, Peak Prosperity, had been warning that the outbreak could spread internationally.She bought masks and face shields, just in case. She started using plastic grocery bags to cover the gas pump handle when she filled up her tank.By early March, the virus still hadn't hit Gordon County, where Francis lives. But the possibility was weighing on her mind. The message on her favorite YouTube show was getting more dire as the host, Chris Martenson, a financial guru-turned-pandemic early warner, ratcheted up his pleadings for viewers to prepare themselves.Francis' 27-year-old granddaughter has a compromised immune system. As a senior citizen, she herself was vulnerable. She did what she always has done and channeled her own feelings into her door-knocking ministry. Do you think, she would ask people as she carpooled with other members to canvass the county, that the virus is a sign of the end of the world?"No one was paying much attention," she said.Elsewhere, in places like New York where infections were starting to climb, Jehovah's Witnesses members were feeling the pinch on their ministries.One of them, Joe Babsky, had been easing into conversations with members of his Planet Fitness gym in the Bronx for weeks. He knew them by first name only: Jerry, who had lost more than 100 pounds; Jason, who seemed to spend an hour on each body part; Bernie, a 78-year-old who was more fit than men half his age. Babsky had shown a few of them Bible verses and had made progress recently with Bernie discussing the logic behind the existence of an intelligent creator.Then the gym closed."All those conversations and others were cut short," Babsky said.Life continued as normal in Francis' town of Calhoun. She was convinced things were about to change, but she was too embarrassed to wear a mask -- until an encounter in Costco when a passing shopper coughed without covering her mouth.In mid-March, her Kingdom Hall meetings went virtual. Members logged into Zoom to share Bible Scriptures. Francis settled on one that she thought would resonate as she knocked on doors in her neighborhood across the county, which had by then registered a handful of COVID-19 cases.At the doorstep, Francis would start her pitch by asking people if they could make one thing in the world go away, what would it be? If the answer had to do with the pandemic, she would recite a couple of verses from the book of Luke:"There will be great earthquakes, and in one place after another food shortages and pestilences; and there will be fearful sights and from heaven great signs."All the signs were clear, she would announce. Armageddon was near. Her message finally seemed to be resonating with people.And then she got word to stop knocking on doors."This has been so much a part of our lives, so it was like, wow," she said. "I have often envisioned in paradise where going door to door would not be a thing because everyone knows God."This was not paradise.But Francis was convinced that the end of the world was not far away. There were just too many signs, she said. And so she and many other Jehovah's Witnesses members were more compelled than ever to witness any way they could. Many began writing letters or making phone calls to anyone whose numbers they had managed to collect before the pandemic hit.Masked and gloved, Francis hands out pamphlets and cards with her phone number on them to fellow shoppers at the grocery store.Last week, she sent a text to a woman in Hawkinsville, Georgia, a few miles away, whom she had been contacting from time to time. The woman said her restaurant had to close because of the pandemic and her brother-in-law was sick with the virus. A couple of days later he died.Francis texted Scriptures to the woman and told her that soon all the sickness on Earth would be over; all sins would be forgiven; paradise was near.The next day she received a written response: "Thank you so much for the information. It was such a comfort."This article originally appeared in The New York Times.(C) 2020 The New York Times Company

The first known comet to visit us from another star system has an unusual make-up.

The National Oceanic and Atmospheric Administration says it has forged a new agreement with Vulcan Inc., the Seattle-based holding company created by the late Microsoft co-founder Paul Allen, to share data on ocean science and exploration. The memorandum of understanding builds on an existing relationship between NOAA and Vulcan. “The future of ocean science and exploration is partnerships,” retired Navy Rear Admiral Tim Gallaudet, assistant secretary of commerce for oceans and atmosphere and deputy NOAA administrator, said today in a news release. “NOAA is forging new collaborations, such as the one with Vulcan, to accelerate our mission to map, explore… Read More

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".

Environmental crises must not be forgotten amid the pandemic, says the UN Secretary General.

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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 5,100 sq km behemoth which broke away from Antarctica in 2017 drops its own large chunk of ice.

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

Surviving trees growing near to an active volcano face an uncertain future for several years after an eruption, a study suggests.

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

NASA has awarded a $2 million grant to the Jet Propulsion Laboratory, The Aerospace Corp. — and Xplore, a Seattle-based space venture — to develop the design architecture for a far-out telescope array that would use the sun's gravitational field as a lens to focus on alien planets. The Phase III award from the NASA Innovative Advanced Concepts program, or NIAC, would cover two years of development work and could lead to the launch of a technology demonstration mission in the 2023-2024 time frame. Xplore's team will play a key role in designing the demonstration mission's spacecraft, which would be… Read More

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.

UK scientists provide a new estimate for the amount of space rock falling to Earth each year.

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

Mediterranean sediments are shown to have up to 1.9 million tiny plastic pieces per square metre.

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

Scientists are working on better solar cells that will turn more of the sun's rays into electricity.

The space agency announces the companies that will work on landers to return astronauts to the Moon.

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