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US Air Force suspends SpaceX rocket project on Pacific atoll, report says

US Air Force suspends SpaceX rocket project on Pacific atoll, report says

Reuters18 hours ago
WASHINGTON, July 4 (Reuters) - The U.S. Air Force has suspended plans it had proposed with Elon Musk's SpaceX to test hypersonic rocket cargo deliveries from a remote Pacific atoll, according to a report this week in Stars and Stripes, an independent publication of the U.S. military.
The suspension came after Reuters reported that biologists and experts said the project would harm many seabirds that nest at the wildlife refuge on the Johnston Atoll, an unincorporated U.S. territory nearly 800 miles (1,300 km) southwest of Hawaii.
The Air Force had said it would undertake an environmental assessment of the project, but publication of a draft assessment was delayed after opposition to the plan by environmental groups.
The Air Force and SpaceX did not immediately respond to requests for comment.
The Air Force is exploring alternative locations for the program, a spokesperson of the military branch told the Stars and Stripes newspaper in story published on Thursday.
The program would use commercial rockets, such as those made by SpaceX, although the Air Force has not announced private partners.
It would test landing rocket re-entry vehicles designed to deliver up to 100 tons of cargo to anywhere on Earth within about 90 minutes. The program would be a breakthrough for military logistics by making it easier to move supplies quickly into distant locations.
But it could be too much for the island's 14 species of tropical birds to withstand, according to biologists and experts who have worked on the one-square-mile (2.6 square km) atoll, part of the Pacific Remote Islands Marine National Monument.
SpaceX's activities have affected protected birds elsewhere. A SpaceX launch of its Starship rocket in Boca Chica, Texas, last year involved a blast that destroyed nests and eggs of plover shorebirds, landing the company of billionaire Musk in legal trouble and leading him to remark jokingly that he would refrain from eating omelets for a week to compensate.
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Mysterious interstellar object caught on camera as scientist says it could be an alien spacecraft
Mysterious interstellar object caught on camera as scientist says it could be an alien spacecraft

Daily Mail​

time22 minutes ago

  • Daily Mail​

Mysterious interstellar object caught on camera as scientist says it could be an alien spacecraft

A mysterious interstellar object hurtling through the solar system has been caught on camera for the first time. First spotted by on July 1, scientists from around the world have now confirmed that this unexpected visitor has travelled through space from a distant star. Officially titled 3I/ATLAS, the rare interloper is 12 miles (20km) long and hurtling towards the sun at 135,000 miles per hour. Now, using a powerful telescope in Hawaii, the European Space Agency (ESA) has captured the first video of 3I/ATLAS as it journeys through space. The short video shows that the object is extremely bright, which means it is either many times larger than any other interstellar object or has another source of illumination. Most experts agree that this extra illumination is caused by the fact that 3I/ATLAS is an active comet, producing a glowing 'coma' of ice and gas as it approaches the sun. However, one Harvard professor claims that the light might not be able to be explained by natural means. Professor Avi Loeb, a physicist at Harvard University, told MailOnline: 'If it is not a comet, then its large brightness would be a big surprise and potentially signal a non-natural origin, perhaps from artificial light.' 3I/ATLAS was detected as a faint speck of light by NASA's Asteroid Terrestrial-impact Last Alert System (ATLAS) telescope. Since then, professional and amateur astronomers around the world have scrambled to gather more data. Scientists quickly combed older data to find observations of the object that had previously been missed, in a process called precovery. Combining these with hundreds of new observations, scientists were able to officially confirm that 3I/ATLAS is an interstellar object. Currently 420 million miles (670 million kilometres) away from Earth, 3I/ATLAS's trajectory and incredible speed mean it must be passing through our solar system after being ejected by its own star. NASA predicts that it will reach its closest point to the sun on October 30, at a distance of 130 million miles (210 million km) - passing just within the orbit of Mars. Thankfully, the object poses no threat to Earth and will pass harmlessly at around 150 million miles (240 million km) away at its closest point. This is only the third time that scientists have managed to spot an interstellar object passing through the solar system. The first interstellar object was Oumuamua in 2017, followed by Borisov in 2019. When Oumuamua was first detected, certain irregularities in its spin and velocity prompted Professor Loeb and his co-author, Dr Shmuel Bialy, to suggest that it could be alien in origin. Professor Loeb said: 'Oumuamua exhibited a large non-gravitational acceleration which was anomalous given its lack of evaporation.' Similarly, Professor Loeb now suggests that 3I/ATLAS could be a similar type of alien craft. While experts say there is no evidence to support this idea, some researchers say we can't rule out the possibility just yet. Professor Michael Garrett, Director of Jodrell Bank Centre for Astrophysics said: 'More observations are definitely needed.' Asked whether the object could be an alien craft, Professor Garret responded: 'Who knows - it could be - that's why it will be important to make as many different measurements as possible to test all hypotheses. 'It's unlikely that it is, but that doesn't mean to say we shouldn't check. We don't know much about these interstellar objects, so we learn more each time we encounter one.' However, Professor Garret added that there is currently no evidence the object is alien in nature, and it is more likely to be 'an icy body that has escaped from another planetary system and wandered by the solar system by chance'. Currently, the overwhelming majority of evidence points to the fact that 3I/ATLAS is a comet. This is because astronomers have spotted a nebulous envelope of gas and dust known as a coma surrounding the object as it is heated by the sun. Based on these observations, both NASA and ESA are now confident enough to confirm that 3I/ATLAS is an interstellar comet. Dr Mark Norris, an astronomer from the University Of Central Lancashire, said: 'If there's a coma, it by definition is a comet, because this means that it is outgassing. 'This thing is still quite far from the sun, so you can expect, therefore, as it gets closer, you should get a bigger cloud of material; and that should become clear as we get more observations going forward.' However, by the time the comet reaches its closest point to the Earth, it will be hidden behind the sun, so astronomers will need to wait until it reemerges in December to catch the best observations.

‘The American system is being destroyed': academics on leaving US for ‘scientific asylum' in France
‘The American system is being destroyed': academics on leaving US for ‘scientific asylum' in France

The Guardian

timean hour ago

  • The Guardian

‘The American system is being destroyed': academics on leaving US for ‘scientific asylum' in France

It was on a US-bound flight in March, as Brian Sandberg stressed about whether he would be stopped at security, that the American historian knew the time had come for him to leave his home country. For months, he had watched Donald Trump's administration unleash a multipronged attack on academia – slashing funding, targeting international students and deeming certain fields and even keywords off limits. As his plane approached the US, it felt as though the battle had hit home, as Sandberg worried that he would face reprisals over comments he had made during his travels to the French media on the future of research in the US. 'It makes you think about what your status is as a researcher and the principle of academic freedom,' he said. 'Things have really changed … The entire system of research and higher education in the United States is really under attack.' Soon after, he became one of the nearly 300 researchers to apply for a French university's groundbreaking offer of 'scientific asylum'. Launched by Aix-Marseille University, the programme was among the first in Europe to offer reprieve to researchers reeling from the US crackdown on academia, promising three years of funding for about 20 researchers. Last week, Sandberg was revealed as one of the 39 researchers shortlisted for the programme. 'The American system is being destroyed at the moment,' he told the 80 reporters who turned up to meet the candidates. 'I think a lot of people in the United States and as well as here in Europe have not understood the level to which all of higher education is being targeted.' As reports began to emerge of funding freezes, cuts and executive orders targeting institutions across the Atlantic, institutions across Europe sprang into action, announcing plans to lure US-based academics. At Aix-Marseille University, hundreds of applications came in from researchers tied to institutions such as Johns Hopkins University, Nasa, Columbia, Yale and Stanford. Three months after they launched their programme – named Safe Place for Science – the university said it had received more than 500 inquiries. It was a glimpse of the 'historic' moment the world was facing, said Éric Berton, the university's president. 'More than 80 years ago, as France was under occupation and repression, America welcomed exiled researchers, offering them a helping hand and allowing them to keep science alive,' he said. 'And now, in a sad reversal of history, some American scientists have arrived in France in search of a space for freedom, thought and research.' Last week, the university opened its doors, allowing reporters to meet a handful of the Americans who were in the final running to join the programme. As high-profile battles play out between universities such as Harvard and the White House, all of them asked that their institutions not be named, citing concerns that their employers could face reprisals. Some declined to speak to the media, while others asked that their full names not be used, offering a hint of how the Trump administration's actions are sowing anxiety among academics. 'The worry is that we've already seen that scientists are being detained at the border. Granted they're not US citizens, but they're even saying now that if you speak out against the government, they will deport you,' said a biological anthropologist who asked to be identified only as Lisa. 'And so I don't need anything against me at the moment until I can officially move here with my family.' Together the researchers painted a picture of a profession that had been plunged into uncertainty as the US government slashes spending on research grants and dismantles the federal institutions that manage and hand out funding. Months into Trump's second presidency, politics is increasingly blurring into academia as the government works to root out anything it deems as 'wokeism' from the post-secondary world. 'There's a lot of censorship now, it's crazy,' said Carol Lee, an evolutionary biologist, pointing to the list of terms now seen as off-limits in research grant applications. 'There are a lot of words that we're not allowed to use. We're not allowed to use the words diversity, women, LGBTQ.' Sign up to This is Europe The most pressing stories and debates for Europeans – from identity to economics to the environment after newsletter promotion While the swift pace of change had left many nervous about what may lie ahead, many were not taking any chances. 'People are moving, for sure,' said Lee. 'A lot of top people have already moved to China. And China is laying out the red carpet. If people are getting an offer from Canada, people are moving to Canada.' For Lisa, the biological anthropologist, the reality of dismantling her life in the US and moving her husband, a schoolteacher, and their two kids across the Atlantic was starting to sink in. 'It's excitement, but it's nerve-racking,' she said. She knew she had to get out when it became clear that Trump had won a second term. Months later, she has found a potential path to do so, but is still wrapping her head around all that taking part in Aix-Marseille University's programme would entail. 'It is a big pay cut,' she said. 'My kids are super gung-ho. My husband is just worried that he won't find a job. Which is my worry too, because I don't think I'll be able to afford four of us on my salary.' But for her, and several others on the shortlist, the view was that there were few other options. 'It's a very discouraging time to be a scientist,' said James, a climate researcher who asked that his full name not be used. 'I feel America has always had a sort of anti-intellectual strain – it happens to be very ascendant right now. It's a relatively small proportion that doesn't trust scientists, but it's unfortunately a very powerful segment.' His wife had also been shortlisted for the same programme in southern France, leaving the couple on the brink of uprooting the lives and careers they had spent decades building in the US. 'I have very mixed feelings,' he said. 'I'm very grateful that we'll have the opportunity, but really quite sad that I need the opportunity.'

How the Biosphere 2 experiment changed our understanding of the Earth
How the Biosphere 2 experiment changed our understanding of the Earth

BBC News

time4 hours ago

  • BBC News

How the Biosphere 2 experiment changed our understanding of the Earth

In the early 1990s, a small team tried to survive in a hermetically sealed space containing replicas of Earth's ecosystems. Their trials and discoveries still have repercussions today. Glittering in the vast expanses of the Arizona desert lies a structure that seems torn straight out of the pages of science fiction. Inside a massive complex of glass pyramids, domes and towers, spread across three acres (1.2 hectares), stands a tropical rainforest topped by a 25ft (7.6m) waterfall, a savannah and a fog desert. They sit alongside a mangrove-studded wetland and an ocean larger than an Olympic swimming pool which includes its own living coral reef. It's seemingly a little capsule of Earth, which is why the structure is called Biosphere 2 – named after our own planet, Biosphere 1. The desolate landscape forms the perfect backdrop for the futuristic experiment that once took place here. In the early 1990s, eight people locked themselves inside, sealed off from the outside world for two years, to explore the challenges of living in a self-contained system – a prerequisite for building colonies in outer space. They fed themselves from the crops they grew, they recycled their own wastewater and they tended to the plants that produced their oxygen. In terms of sustaining human life, the experiment did not go well. As one commentator put it in the 2020 documentary Spaceship Earth, "everything that could go wrong went wrong". Oxygen levels plummeted, making the inhabitants sick, while carbon dioxide (CO2) levels increased. Countless animals died, including the pollinators the plants needed to reproduce. And although the "biospherians" did survive on their homegrown food, they lost weight to the point where they became a case study for calorie restriction. When supplementary oxygen needed to be brought in, commentators decried the project as a failure, calling it a "flop" and "new-age drivel masquerading as science". In recent years, however, many experts have come to see the Biosphere 2 experiment in a new light, with valuable lessons about ecology, atmospheric science and importantly, the irreplaceability of our own planet. Lisa Rand, a historian of science at the California Institute of Technology, argues that these lessons are especially worth revisiting today as billionaires advance private space programmes and float the idea of space colonies while our own planet is increasingly suffering from climate change and other man-made problems. And to environmental scientists, the Biosphere 2 experiment also demonstrates the value of bold experiments to better understand how the natural world works. In fact, today, the facility is bustling with scientists testing the effects of climate change on its living ecosystems. Far from helping humans escape Earth, Biosphere 2 seems to have become one of our best tools to understand Biosphere 1. "It wasn't a failure," Rand says. "I think it was actually ahead of its time." Though the Biosphere 2 experiment is often described as a test run of a future space colony on the Moon or Mars, the project in fact had deep environmental roots, says Mark Nelson, one of the eight biospherians and a founding director of the non-profit Institute of Ecotechnics. The idea for Biosphere 2 came from a group of people – including Nelson – living in an ecovillage on a New Mexico ranch who spent their time organic farming and doing performance art and carpentry. The group's founder, John Allen, dreamed of building a self-contained system to better understand Earth's complexities and find ways of using technology to more peacefully exist with the natural world, Nelson says. The project was bankrolled by billionaire Ed Bass, who put about $150m towards Biosphere 2 (equivalent to $440m today, or £330m). Under Allen's leadership, building began in 1984. It was – and remains – the largest building of its kind to be nearly fully sealed off from the atmosphere, Nelson says. Though none of its ecosystems was a perfect model of its real-world counterpart, each one was designed with similar kinds of vegetation, along with a selection of insects, fish, and birds, says John Adams, the current deputy director of Biosphere 2. A patch of farmland was included to grow crops. An underground system of piping and pumps controlled everything from temperature to humidity. Other systems recycled wastewater for crop irrigation and harvested drinking water from condensation in the air conditioning units. Biosphere 2 was intended to operate for a century, but when the biospherians entered the facility in September of 1991, "it was such a vast experiment that none of the eight of us had any certainty we could last one way or another for two years in there," Nelson recalls. Nelson and Adams see the events that unfolded inside not as failures, but as the outcomes of an experiment, as would occur in any other scientific study. "In science, there's no such thing as a failed experiment," Adams says. The most pressing issue for the biospherians was the decline in oxygen levels, which dropped from normal levels – roughly 21% of the atmosphere – to about 14% after 16 months. That's equivalent to oxygen levels at about 3,350m (11,000ft) above sea level. Until supplementary oxygen was brought in, the biospherians grew tired and weak from altitude sickness, making farming and other work arduous, Nelson recalls. These and other problems took scientists a while to figure out, says David Tilman of the University of Minnesota Twin Cities, who was part of a committee of ecologists that reviewed the experiment after it concluded. "It was very clear to us that the problem was much more complex than you might imagine at first," he says. Experts worked out that the cause was the extremely rich, young soils that had been introduced to fuel rapid growth of crops and other vegetation. This created a lot of food for bacteria and fungi, which, like us, consume oxygen and emit CO2. The trees and shrubs in the new ecosystems – which take up CO2 and release oxygen – were too young and too outnumbered by microbes to counterbalance this effect. "I think that was a really important lesson to learn: that that [soil] microbiome, even though we can't see it, is extremely influential," Adams says. Fortunately, the rise in CO2 – a greenhouse gas that heats up the atmosphere – was buffered by the fact that much of it got soaked up by the facility's concrete surfaces. The biospherians also did their best to stem the rise as well as boost oxygen levels. They cut dead grasses in the savannah and trimmed fast-growing rainforest species to stimulate new growth – storing the cut vegetation in dry conditions to slow down its decomposition, a process that releases CO2, Nelson says. They also planted fast-growing plants like sugarcane and created a bed of algae in the basement – but oxygen levels still waned. While some "extinctions" within the ecosystems were expected as they settled into an equilibrium, the vanishing of pollinating insects was an unexpected problem for plant life. Nelson attributes this to an explosion in the population of longhorn crazy ants that prey on pollinators, while ecologist Brian McGill of the University of Maine suggests they may have died off because the glass enclosing Biosphere 2 blocked ultraviolet light, which the insects needed to find flowers. "Bees in particular see in the UV spectrum," he says. The issue wasn't urgent as most of the ecosystems' flowering plants were long-lived, but some biospherians pollinated a few species by hand, brushing pollen into flowers so seeds could form, Nelson says. The long-term plan was to control the ant populations and introduce new pollinators from the outside world. Scientists made other interesting observations. Some trees, they realised, became weak and more prone to breaking, likely because of the lack of wind, which triggers trees to produce "stress wood" that strengthens them, McGill says. Marine biologist and geoscientist Diane Thompson, who now directs marine research at the facility, says that scientists also learned a lot about the kinds of light that corals need to thrive in captivity. But the most important lesson from the biospherians' experience, experts agree, is the realisation of how difficult it would be to live anywhere else than on Earth. Humans can't exist in isolation; they come in "biospheric packages", as Nelson puts it, and recreating these complex systems is no easy task. While Tilman reckons that some of the problems may have been solvable, it was clear during his visit to the facility that it was a long way away from being able to sustain human life. "It really impacted me when I saw that, because… my initial guess was that you would probably make it work," he says. Now, "I firmly believe that this really is our only planet ever". By extension, the experiment therefore deeply underscored the need to protect our planet in an intact state. Consider the immense technological costs – not to mention the hard physical work by the biospherians – to keep the atmosphere and life support systems intact. Tilman estimates that, if future space colonies are anything like Biosphere 2, they'd cost $82,500 (£61,000) per person a month to live in, and even that would be no guarantee of sustaining human life. "It's incredibly expensive to try to replace the services that the Earth's ecosystems provide for free to humanity," Tilman says. To Nelson, realising that his own survival was entirely dependent on the health of the ecosystems around him was transformative, as he wrote in his book Life Under Glass. Being a biospherian meant living as sustainably as possible – using the gentlest of farming practices, avoiding pollution anywhere inside Biosphere 2, and respecting every oxygen-producing plant. "Just being in a small system where you see that reality – that you're part of that system, and that system is your life support – changes the way you think at a very deep level," Nelson says. When the experiment concluded in 1993, these messages were largely overshadowed by the negative media coverage around the project, Rand says. In her view, this was because of how it appeared to clash with widely-held views at the time. Many experts had rigid views of how science should be done and didn't consider it a legitimate experiment. It had been funded by a wealthy individual rather than a government and conducted by self-taught science generalists rather than scientists with PhDs from academic institutions. Rand believes this would be far less controversial today. Meanwhile, because the public saw the project as a "glass ark" or a model of a future space colony, the biospherians were seen to be "cheating" when one of them was taken to hospital due to a finger severed in a rice-hulling machine, or when they installed the oxygen pump, Rand says. "I think it's fair to speculate that the events that were perceived by journalists [and the public] as failures might have been seen as normal, valid experimental results if the project took place now," she says. The negative media perception – as well as disagreement around how to manage Biosphere 2 after the original experiment ended – created challenges for those overseeing the project, Adams says. In 1996, Ed Bass handed over management of the facility to Columbia University and eventually gifted it to the University of Arizona. Scientists at those institutions saw the unique opportunity that Biosphere 2 provided, says Adams. Ecologists who study how living systems work usually do so by analysing what happens in the aftermath of vicissitudes like heatwaves or drought, McGill says. But in order to predict how climate change, for instance, will alter Earth's ecosystems in the future, they need to recreate future conditions and see how living beings respond. Like a time machine, Biosphere 2 allows them to do just that. From its very first experiment, "Biosphere 2 was just a really cool and vivid stake in the ground about the need for ecology to be predictive," McGill says. Today, Biosphere 2's rainforest is the stage for experiments testing how its real-world counterparts might fare under global warming. One study dialled up the temperature and found the forests to be surprisingly resilient to heat; rather, it's the drought associated with warming that hurt them. More recently, the ecologist Christiane Werner from the University of Freiburg, Germany, and her colleagues exposed the forest to a 70-day drought. They learned how some trees survive by tapping into deep, moist soil layers and that drought-stressed trees release more compounds called monoterpenes, which form airborne particles that could potentially serve as seeds for much-needed rain clouds. Thanks to Biosphere 2, "you can send a whole grown forest into a drought and then monitor all these processes along the way", she says. The coral reef, meanwhile, was the site of one of the first experiments to show that as the oceans become more acidic – which happens when they absorb CO2 – this makes it harder for corals to grow and thrive. Now, scientists are simulating severe heatwaves in Biosphere 2's mini-ocean, and plan to test whether probiotics or exposing corals to heat before transplanting them onto the reef can make them more resilient. "If we warm the ocean," Thompson asks, "will those solutions work – not just now, but decades into the future?" Adams says he hopes that Biosphere 2 can do for ecologists what the Large Hadron Collider is doing to improve physicists' understanding of particle physics, and what the James Webb Telescope is doing for astronomers striving for deeper glimpses into the universe. But ecology's mega-experiment doesn't only help us better understand the intricacies of the living world and how it's changing amid planetary upheaval. Its story, Nelson says, should also inspire and help every one of us to take better care of our only life-sustaining planet, Biosphere 1. Ultimately, we are all biospherians. -- For essential climate news and hopeful developments to your inbox, sign up to the Future Earth newsletter, while The Essential List delivers a handpicked selection of features and insights twice a week. For more Culture stories from the BBC, follow us on Facebook, X and Instagram.

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