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

For Jeff Anderson, 61, working from home during the coronavirus pandemic has been a respite from office politics and the chatter around the copy machine.But as the push to reopen the country's economy intensifies, so do feelings of dread at the idea of returning to the office, said Anderson, a self-described introvert and anthropology professor at Hobart and William Smith Colleges in Geneva, New York."Just walking from the parking lot to my office I feel like I could be sick," he said. "It's that bad."In wanting to work alone, Anderson is not alone. People other than introverts view a return to the office with sadness and anxiety, and not just because they still risk getting infected. A Gallup poll found a majority of U.S. adults working from home would prefer to continue doing so "as much as possible" after the pandemic.These fans of online work worry that they -- and the country itself -- will lose important benefits discovered during this unprecedented experiment in mass remote work. People who have never liked schmoozing with colleagues have found new heights of productivity away from meetings and office chitchat. People worried about climate change are eager to reduce their carbon footprints by avoiding commutes by car. And while many parents are desperate for schools and day care centers to reopen, some working parents are appreciating more time with their children.Before the pandemic, Christine Reilley had to wake up at 4:30 a.m. to catch an early bus to Manhattan where she works as senior director of strategy and innovation for the American Society of Mechanical Engineers."I'm better rested. I can devote more time to my work," she said. "Just saving the time and money of commuting, I really like this personally."Impossible for Some and 'Overrated' for OthersIt did not take long for naysayers to declare that working from home was "overrated."And yes, it is an option mostly for white-collar office workers. Telecommuting is rarely possible for people in manufacturing or service jobs, and for the health workers, emergency responders, grocery store clerks and delivery people who have been deemed essential personnel. And the more than 30 million Americans who have lost their jobs since March may be impatient about complaints from people still drawing paychecks.Nor can the other downsides be denied. Trying to meet on Zoom from a kitchen table with bored children and annoyed spouses complaining in the background is hardly good for productivity. Women say that video calls make it harder for them to get in a word during meetings dominated by men. This crisis has also increased the burdens on working mothers.Telecommuting was already a growing trend that left out many low-wage workers and was viewed warily by employers who worried that people were slacking off at home. Researchers warned that problem solving and creativity suffer when workers are isolated from one another. Isolated work can lead to loneliness and boredom. Remote workers have also reported they have had to work even longer hours.OK, So What Are the Benefits?For remote work to be successful, employers need to provide the right equipment and other support, said Laurel Farrer, chief executive of Distribute Consulting, a business consulting firm. And the employees must be able to get work done without supervision. If set up properly, experts and advocates say, remote work has many benefits:-- Less time on the road. Commuting by car has been linked to increased stress, more pollution and respiratory problems. The average American who drives to work spends 54 hours per year stuck in traffic, according to an analysis by the Texas A&M Transportation Institute.-- Greater productivity. One well-known study from 2014 led by Stanford professor Nicholas Bloom examined remote workers at a Chinese travel agency and found that they were 13% more efficient than their office-based peers.-- A cleaner environment (maybe). According to estimates from Global Workplace Analytics, a research and consulting firm, if everyone in the United States worked remotely half the time, it could reduce greenhouse gas emissions from vehicle travel by more than 51 million metric tons a year. Graphics showing the reduction in air pollution and pictures of clearer skies over cities like Los Angeles have been among the silver linings of the pandemic. Of course, when people return to work, the roads may fill up again, especially if people fear getting the virus on public transit. And even if more people start working remotely, they might use their cars more for errands closer to home, said Bill Eisele, a senior research engineer at the Texas A&M Transportation Institute. Office commuters make up only about 18% of all traffic, he said.-- Money saved. Global Workplace Analytics estimated that people could save, on average, $2,000 to $6,500 every year by not spending on things like gasoline and day care. Companies could spend less on real estate. The U.S. Patent and Trademark Office estimated it saved more than $38 million in 2015 by not using as much office space, according to a Harvard Business School working paper from November.-- More job satisfaction. A 2005 study found that job satisfaction increased with each additional hour people spent working remotely. But it stopped increasing beyond 15 hours worked remotely.-- Less sickness. Even as companies consider reconfiguring workplaces with plexiglass barriers on desks and special air filters, letting employees work from home can help keep them safe from communicable diseases (and not just COVID-19).-- More time for fitness. You may be able to squeeze in more workouts. "Having a little more time, if you're using it wisely, can be very beneficial," said Marilyn Skarbek, an assistant professor of exercise science at North Central College in Naperville, Illinois. "There are a lot of other things you can do around the house to keep you moving: laundry, cleaning -- all of that keeps you active. My house is definitely cleaner than normal." But there is a risk you could be more sedentary, she warned.Kate Lister, president of Global Workplace Analytics, predicted that workers will be looking for the "happy medium," splitting time between remote work and showing up at the office. The hope is that the pandemic will have shown managers that workers can be trusted to do their jobs without constant supervision."Any kind of flexibility is something that people are really, really ripe for, just some control over where and when they work," she said.Happy Tales From the Home OfficeMany people who had never considered this kind of working life have now had a taste of it, and they love it.Jacquie Benetua-Rolens, communications and engagement coordinator at Santa Cruz Community Health Centers in Santa Cruz, California, has a 2-year-old son who has become a daily part of Zoom meetings with colleagues, waving at them in his pajamas."There is this softened, unfiltered, more honest version of ourselves that I'm enjoying getting to know," Benetua-Rolens said. "There is room to be forgiving and understanding with each other and ourselves. And it's because we've all had to juggle."Benetua-Rolens said she often thinks of her small cubicle back at the office, which she decorated with plants and pictures of her two children."I used to love it," she said. "But I don't miss it at all. I don't want to go back to that even though my house is filthy."Jessica Keup, a 37-year-old single mother and a computer programmer in Ann Arbor, Michigan, moved to her parents' home in rural Tennessee with her 3-year-old son in mid-March, after her company told employees to work from home.Since then, she has been coding from the deck while her son plays with the goats, chickens and peacocks that roost on the vast property.Keup said the solitude has made her more focused and more productive. Her work is not interrupted by chatty colleagues who want to say hi or need help fixing a computer glitch."The people who are in the office who are extroverts stand out and talk a lot and can take the oxygen out of the room," she said.At least one poll from early in the pandemic suggests a strong preference for remote work. Gallup found that almost 60% of Americans working from home would prefer to work remotely "as much as possible" after restrictions are lifted, with 40% saying they preferred to return to the workplace. The online survey of 2,276 randomly selected adults was conducted from March 14 through April 2. It had a margin of sampling error of plus or minus 4 percentage points.At the very least, some workers would like to see employers put lessons of the pandemic into practice, including more compassionate management in general.Rico Sisney, who works for Greenpeace USA, said he would like to continue seeing the kinds of emails his organization has been sending lately encouraging employees to take walks and small breaks."Organizations can continue that even when there is not a pandemic," Sisney said. "Highlight mental health."Christine de Denus, a chemistry professor at Hobart and William Smith Colleges, said she has relished the quiet of working from her porch. She thinks workplaces should adapt to all styles of working."Go to the people and say, 'How can I help you thrive?'" de Denus said. "Just because I'm quiet in a meeting doesn't mean I don't have ideas."When the time comes to return to the office, Keup said she plans to ask if she can work two to four weeks a year from Tennessee."It's beautiful. It's resting and restorative," she said. "And I'll miss that."This article originally appeared in The New York Times.(C) 2020 The New York Times Company

BBC News looks at what we know and don't know about the Earth's changing climate.

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.

One of the hardest tasks in Earth observation is tracking tiny changes in the shape of the ground.

An unseen object is found to be lurking in a double-star system a mere 1,000 light-years from Earth.

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

Certain habitats can help dampen the spread of ash dieback, which threatens ash trees.

Funding for English local authorities is likely to be unveiled to encourage people to be more active.

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.

Scientists usually find black holes by detecting X-rays they emit as they devour nearby stars. But this one was quietly hidden 1,000 light-years away.

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

The largest, brightest full moon in nearly seven decades started to show on Tuesday evening over Europe, Latin America, the US and the Middle East. This year, the supermoon was expected to come nearer to Earth than at any time since 1948, astronomers have said. A supermoon occurs when the timing of a full moon overlaps with the point in the moon's 28-day orbit that is closest to Earth, and about every 14th full moon is a supermoon. If skies are clear, this time the full moon will appear up to 14% bigger and 30% brighter than usual, according to Nasa

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

Two gems from the wizard of recreational maths

UPDATE: Puzzle solutions can be read here.

Today’s column is a celebration of John Horton Conway, the legendary British mathematician, who died of coronavirus earlier this month, aged 82.

Conway was an inspirational, iconoclastic genius who invented and studied countless puzzles and games, in addition to his more highbrow work in group theory, number theory, geometry, topology and many other fields.

The answers to today’s puzzles

Earlier today I set you two puzzles that the late John Horton Conway suggested for this column:

1) The Miracle Builders

Puzzles for kids in quarantine

Update: Solutions can now be read here.

Today’s teasers are from my new puzzle book, Football School: the Ultimate Puzzle Book, which is aimed at 8 to 13-year-olds. No pressure. I have extracted some of the problems that I thought might also provide entertainment for grown-ups.

We kick off with a problem for everyone tending their lawns, plant pots, and window boxes during lockdown.

The solutions to today’s puzzles

Earlier today I set you the following four puzzles from my new book, Football School: the Ultimate Puzzle Book:

1. Which of these two watering cans can carry the most water?

Smartphones can be used to digitally trace Covid-19. But not if the public don’t download an app over privacy fears – or find it won’t work on their device

The idea of the NHS tracing app is to enable smartphones to track users and tell them whether they interacted with someone who had Covid-19. Yet this will work only if large proportions of the population download the app. No matter how smart a solution may appear, mass consent is required. That will not be easy. Ministers and officials have failed to address the trade-offs between health and privacy by being ambiguous about the app’s safeguards.

Instead of offering cast-iron guarantees about the length of time for which data would be held; who can access it; and the level of anonymity afforded, we have had opacity and obfuscation. It is true that we are dealing with uncertainties. But without absolute clarity about privacy the public is unlikely to take up the app with the appropriate gusto.

Some weeks ago my main worries were around my GCSEs. Now I hear every day about deaths from Covid-19

• Coronavirus – latest updates
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It is the sixth week of lockdown, and for many people things are getting progressively more intense. Most families are physically distancing at home. People are only leaving the house for their weekly shop – and spending a lot of that time waiting in the queue – or to exercise once a day.

In my family things are a bit different. Our driveway is usually empty during the day as my parents, who are doctors, go in to work. It is difficult to imagine how only some weeks ago my main worries were around my GCSEs. Now every day, I hear about deaths from coronavirus. I cannot help but feel a surge of fear for my parents as I watch these updates with my brother. I’m painfully aware of the many healthcare workers who have lost their lives.

The chance to put biodiversity and the environment at the heart of recovery from the pandemic should not be squandered

One night in April, birdwatchers from around Britain stepped outside their doors and listened intently to something most of them had never experienced before: the fluting, mysterious, melancholy cry of the common scoter on the wing.

Flocks of these dusky sea ducks were beating their way over Britain on their long migratory journey towards their Arctic breeding grounds, easily audible to the naked ear. The first great wave was heard on the Wirral before being picked up in the Peak District, and at last by the Humber. A second wave was made out as flocks made their way along the line of Hadrian’s wall, from the Solway Firth in the west to Northumberland in the east. A third wave flew above listeners from the Severn estuary to the Wash. The birds were heard in urban Blackburn, Stalybridge, Bristol and London. It was thanks to social media that so many listeners were alert to the birds’ progress – and thanks to the silence of lockdown that they could be heard.

Friends and colleagues pay tribute to gifted polymath whose achievements spanned biology, physics and public policy

• Lord May of Oxford obituary

Pioneering Australian scientist Robert May, whose work in biology led to the development of chaos theory, has died at age 84.

Known as one of Australia’s most accomplished scientists, he served as the chief scientific adviser to the United Kingdom, was president of the Royal Society, and was made a lord in 2001.

After a string of studies that highlight the possible link between air pollution and Covid-19 deaths, Ian Sample hears from Prof Anna Hansell about the complicated relationship between pollution, health and infection with Sars-CoV-2

Hannah Devlin speaks to Prof Sabra Klein about why women are much less likely to become seriously ill or die from Covid-19, and what the implications of this knowledge for future treatments might be

With false information linking the coronavirus to 5G telecoms or Chinese labs being widely shared on social media, Ian Sample speaks to social psychologist Dr Daniel Jolley about why the pandemic is such fertile ground for conspiracy theories

As hay fever season approaches, Nicola Davis asks Prof Stephen Durham about the differences between the immune response to an allergen, such as pollen, and a pathogen, like Sars-CoV-2. Should those with allergies should be concerned about Covid-19?

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.