SCROLL NEWS / DISCOVERY
Search headlines
Find the stories shaping the conversation.
Results for " kilometre " 17 found 🔀 AI-powered Shuffle
Antarctic winter sea ice falls to third-lowest level on record as scientists warn of ‘now problem’
Coverage falls a million square kilometres short of long-term average with global heating likely driving losses
Pope celebrates giant Paris Mass in landmark visit
Some 700,000 people had gathered over a stretch of more than two kilometres in central Paris
Concern at Barcelona over Raphinha: 35,000 kilometres this break
FC Barcelona heads into this international break deeply concerned about the physical toll awaiting Raphinha. The Blaugrana winger will cover around 35,000 kilometers to fulfill his commitments with th...
Bodø/Glimt: The system behind the sensation
In Bodø, just under 80 kilometres north of the Arctic Circle, where winters are harsh and dark and the weather is never quite predictable, the people have adopted a motto: You have to celebrate whene...
Scientists mapped beneath Utah’s Great Salt Lake and found a potentially vast reservoir of freshwater hiding under one of America’s saltiest lakes — in places, it extends more than three kilometres underground
Reeds do not grow on salt flats. Yet dozens of near-perfect circles of them have shoved their way up through the crust of Farmington Bay, in the
Why does a funnel-web spider new to science turn up at just three sites in northern Idaho, about 500 kilometres east of the western Cascades and coast ranges where its genus was known to live?
Four collecting dates at three sites near Kooskia and in the Nez Perce National Forest produced a mygalomorph spider from a genus whose only previous revision was published in 1979, and whose two other species live a long way west. The genetics place it firmly. The map around it does not.
Greenland research institutions halt new US collaborations citing mistrust
Although US President Donald Trump still harbours ambitions to take over Greenland, for US researchers his actions seem to have had the opposite effect. Over the summer, Greenland’s two largest research institutions, the Greenland Institute of Natural Resources and the University of Greenland, both announced policies of not starting new research projects with US researchers.Both institutions cite a mistrust of the US as a motivation for the decision. At the University of Greenland, the change of policy has already led to the rejection of specific proposals for new collaborations, rector Mari Kleist told Science|Business. “The reason is the changed political situation between the US and Kalaallit Nunaat [Greenland], and the uncertainty that the American interest in Kalaallit Nunaat has created,” she said.For the Greenland Institute of Natural Resources, a partially state-funded environmental research institution, the decision was also prompted by a lack of trust in US intentions. In a July interview with local broadcaster KNR, director Josephine Nymand cited concerns about data ownership, US “influence operatives” and social media monitoring of researchers entering the US.The Greenland Institute of Natural Resources has long collaborated with the US National Science Foundation (NSF). The policy change will not affect these existing partnerships but will apply to collaborations with new, “unknown” partners, Nymand said. At the University of Greenland, the policy is the same.The changes come amid proposals of severe cuts to the NSF, which would likely also see the US research presence in Greenland reduced. In spite of this, when asked about the Greenlandic policy change, the NSF remained optimistic of its continued presence in Greenland.“We are grateful to our partners in Greenland for their collaboration in advancing scientific knowledge and training the next generation of researchers. NSF remains committed to the long-term collaborations with Greenland that enable scientific research near communities and on Greenland’s ice sheet,” an NSF spokesperson told Science|Business.Fewer US researchers in GreenlandMost research published on Greenland is on natural science topics such as the cryosphere, ice dynamics, permafrost and climate change. In recent years, US researchers have been the most prolific publishers on Greenland.The US research presence in Greenland goes far beyond the capital of Nuuk, where the two research institutions are located. It includes the Pituffik Space Base in northwest Greenland, various projects in settlements and research stations along the coast, as well as research stations on the Greenland ice sheet itself.The largest of these sites, Summit Station, is located at the highest point of the Greenland ice sheet, about 3,200 metres above sea level, and since the 1980s it has been used for drilling cores out of the ice sheet. These ice cores provide valuable information on the global climate going back at least 100,000 years. About 30 kilometres from Summit Station, the Danish-led Greenland Ice-core Project (Grip), funded by the European Research Council, is also drilling ice cores. Although they initially competed, the relationship between the two research teams has “long been amiable,” Jørgen Peder Steffensen, a Danish researcher who has been part of Grip for more than 40 years, told Science|Business.However, since Trump took office in early 2025, Steffensen has noticed a reduction in US research in the country. “Several of our American partners did not make it into the field this year. Their field seasons were cancelled because they lacked the budget,” he said.He ascribed part of the reduction in US researchers to a renovation of Summit Station. “A very large share of NSF funding has gone into renewing the station. Money has been taken from research and allocated to rebuilding it,” he said.A report published in August by Arctic Hub confirms Steffensen's observations of fewer US researchers. It shows that US research publications on Greenland took a dip towards the end of the period spanning 2015 to 2024. In 2024, before Trump took office, the number of publications had fallen from an average of about 250 articles a year, to just 164, second behind Canada at 169.Data from the NSF logistics provider Battelle also shows a reduction in US research presence in Greenland in recent years. In 2023, Battelle counted 48 projects across 78 locations, but in 2025 that number had fallen to 40 projects across 38 locations. And while relations with US personnel in Greenland have remained strong, some tensions have arisen since Trump took office. “On a personal level, there is nothing. But it’s hanging in the air. It hangs unspoken,” Steffensen said.Cutting ties with US researchers entirely would come at a higher cost for the ice core researchers than the Nuuk-based institutions. To get cargo to and from their bases, both Grip and Summit Station rely on unique, ski-equipped Hercules LC-130 aircraft operated by the New York Air National Guard. Without these, maintaining a research base on the Greenland ice sheet would not be viable on current budgets, Steffensen said. “[If the Hercules planes were not available], we would have to think outside of the box. We would have to use smaller planes, and we would have to build a base closer to the coast. But staying in our current location would be too expensive and it would create a huge carbon footprint,” he said.Suspicious people in NuukIn her explanation of the severed US ties, Greenland Institute of Natural Resources director Josephine Nymand compared the decision to past situations when the institute had to cut ties with China and Russia, the latter due to Russia’s full-scale invasion of Ukraine in 2022. And although the current situation is less severe, the comparison reflects the seriousness with which Nuuk sees the US threats. “From Greenland’s perspective, the US may not look so different from Russia right now: a much larger neighbouring power threatening to invade,” Lin Alexandra Mortensgaard, a researcher of international politics in the Arctic at the Danish Institute for International Studies, told Science|Business. “From a European perspective, it is not a comparable situation, because we are entangled with the US on all possible fronts and do not want to destroy more than is absolutely necessary. But from Greenland’s side, there may well be a need to send a clear signal to the US,” she went on. Suspicions have been fuelled by instances of Trump-affiliated people in Greenland trying to persuade Greenlandic citizens to support a US takeover. The most prolific among them is Tom Dans, a former venture capitalist and pecan farmer who was appointed by Trump as the chair of the United States Arctic Research Commission. Observers fear that he is now using research to achieve a US takeover.“Greenland is a small society with a small population, so when Americans with unclear affiliations wander around, trying to be good friends with people, and you don't know what they want, that creates mistrust. This probably played into the research institutions taking these drastic steps,” Mortensgaard said.Related articles:The US ‘golden age’ science strategy: what Europeans need to knowEU polar research melts into the backgroundAnchor Greenlanders in Arctic climate research, experts tell EU ahead of policy updateAnd although Greenland’s population is small at just 57,000, for Mortensgaard, it serves as a microcosm for the geopolitical situation as a whole: global powers fighting for their interests to the detriment of the common interest. Arctic research already suffered when collaborations with Russia broke down in 2022, she said, so a split with the US would be a serious hit to climate science.“The Arctic climate system does not respect borders or geopolitical divides. When collaboration across those lines suddenly becomes impossible, it is a huge problem for knowledge production,” she said. European alternatives?The Greenland Institute of Natural Resources is funded partly by research grants from external sources like the NSF. To replace the US funding, the institute will have to look for alternative revenue sources, and Nymand said that she is looking to Europe for those. Aside from Denmark, of which Greenland is formally a part, she also noted increased interest in research collaborations from the UK, France and Switzerland. Kleist of the University of Greenland told Science|Business that it was too early to say if the severed US ties would lead to more collaborations with Europe. Meanwhile, Mortensgaard believed that the tensions in Arctic research could well leave room for closer European partnerships, or stronger links with Canada. “I spoke to Canadian researchers who had long-standing relationships with American colleagues and who collaborated with the US Navy, but who had gotten worried that their data on sea ice could be used if Trump suddenly decided to follow through on his threats of invading,” she said. “Like Canada, I think Greenland is considering creating closer ties to Europe and I think European capitals will be open to this,” she said.
In 2007, scientists used NASA satellite measurements to reveal 14 areas of moving water beneath West Antarctica; one hidden lake had drained about 2 cubic kilometres in three years
Antarctica may look like a vast, frozen and unchanging landscape, but deep beneath its thick ice lies a surprisingly active world. In 2007, scientists reported findings based on measurements collected by NASA’s ICESat satellite between 2003 and 2006, revealing major changes in the surface of the West Antarctic Ice Sheet and signs of water moving through hidden lakes far below.
Scientists thought Titan was hiding a global ocean beneath its frozen crust. But a 2025 reanalysis of Cassini data points to something stranger instead — a roughly 380-kilometre-thick layer of slushy ice, close to melting and likely threaded with pockets of liquid water that could reach 20°C near the rocky interior.
A 2025 Cassini reanalysis measures a tidal lag that favors a warm, partly melted high-pressure ice layer over Titan's long-assumed global ocean.
‘Spectral lines’ and a giant plume: what science saw when the SpaceX rocket hit the moon
Sodium and lithium gas was detected in a plume thought to span tens of kilometres, created when part of a SpaceX rocket crashed into the lunar surface
ANALYSIS | U.S. FCC approves giant space mirror to deliver 'sunlight on demand,' but what are the legal implications?
Despite hundreds of public comments opposing a giant space mirror that would shine light roughly five kilometres wide, the U.S. Federal Communications Commission (FCC), has given it the green light. What could this mean for Canadians?
Aboriginal people harvested channel millet for thousands of years, and scientists have now found the native grass carries 12 copies of each chromosome
Seen from the air, Channel Country in outback Australia looks like a vast, living tapestry. A web of rivers and creeks fans out across more than 280,000 square kilometres of desert, creating one of the world’s last truly free‑flowing arid river systems.
Scientists have detected a giant fan-shaped structure buried beneath the East Antarctic Ice Sheet, suggesting the frozen continent may be hiding the geological scars of the breakup that helped separate Antarctica from Australia
East Antarctica can look, from above, like the quiet half of the frozen continent: old, thick, cold and buried under kilometres of ice. But beneath that ice, new mapping suggests the bedrock may carry the shape of a much more violent past. In a Nature Geoscience study published in June 2026, researchers described a giant […]
In 1908, something exploded in the sky over Siberia with hundreds of times the energy of the Hiroshima bomb, flattening more than 2,000 square kilometres of forest. When scientists finally reached the site years later, they found no crater at all
On the morning of 30 June 1908, an object from space exploded above the basin of the Podkamennaya Tunguska River in central Siberia. It flattened roughly 2,150 square kilometres of forest, an area larger than Greater London, and tens of millions of trees were knocked down in a pattern that radiated outward from a single […]
Science diplomacy lessons from a North Korean volcano
Mount Paektu, a mythic, active volcano on the border between North Korea and China, is almost the epitome of a scientific challenge that crosses political lines. In 946 CE, it erupted in one of the five biggest volcanic events of the past 10,000 years, kicking up huge quantities of ash and sending destructive mud flows down river channels for hundreds of kilometres. Should this happen again, the entire region, including easternmost Russia, South Korea and even Japan could be hit. “It’s definitely got the potential to be big,” said James Hammond, a professor of geophysics at Birkbeck, University of London. An eruption on the scale of 946 would have “huge regional impact.” For the past 15 years, Hammond has helped lead a groundbreaking collaboration with North Korean scientists to study the volcano, navigating scientific sanctions, tough export controls on scientific equipment and a long, pandemic-enforced exodus from the country. Although he seems more at home on far-flung research expeditions – before speaking to Science|Business, Hammond was camping out on a Greenland ice sheet – he has also advised the European Commission on its changing science diplomacy strategy. His long experience with North Korea has made Hammond sceptical of blanket bans on science collaboration, no matter the country.This is a live question in Europe, where in the wake of Russia’s 2022 invasion of Ukraine, institutional ties with Russian universities were almost entirely severed, although some scientists fear this could undermine our understanding of climate change’s impact on the Arctic. Here, Hammond tells the story of the Mount Paektu mission and the policy lessons he takes from it. Ominous rumblingsThe genesis of Hammond’s collaboration came in 2002, when Mount Paektu began to rumble ominously. Earthquake activity picked up and the volcano began to emit unusual gases. North Korean scientists took notice. “People felt we need to know more about this volcano,” said Hammond. In 2011, North Korean vulcanologists put out a request for international expertise to help them learn more. At the time, Hammond and his collaborator, Clive Oppenheimer, were working on a vulcanology project in another sanctioned country, Eritrea, and so decided to answer the call. Within a month, they had flown into Pyongyang. “It was pretty incredible,” recalls Hammond (left). “We were made to feel like honoured guests, and invited to official celebrations.” The scientific opportunity was huge. Paektu is unusually positioned, a thousand kilometres from where tectonic plates rub against each other in the Pacific. “It was an incredibly interesting volcano, but not much research had been done, at least not in the international community,” he said. “There was so much we felt we could do. And we had these partners that were super keen to engage.”The mission received an unusual visitor in the form of volcano-obsessed filmmaker Werner Herzog, who accompanied Hammond and Oppenheimer while directing his 2016 film Into the Inferno about volcanos across the world. Four days into the trip, the German director delivered a long speech about reunification to his North Korean hosts, recalls Hammond. “He got to the heart of the Koreans and how they felt, and how they thought, in a way that I'm not sure I ever will,” he said. UN sanctionsHowever, Hammond realised he’d been “naïve” about how difficult it would be to collaborate with North Korea, which was sanctioned far more heavily than Eritrea. “We didn’t fully appreciate the all-encompassing nature of restrictions,” he said. In 2016, as tensions escalated over Pyongyang’s nuclear tests, a United Nations resolution banned all joint scientific work with North Korea. However, the UN sanctions did allow countries to request carve outs, and the UK successfully requested an exemption for Hammond’s work. Related articlesEU pushes for joint science diplomacy, but care needed to avoid gridlock, experts sayRussia severs its last ties with German scienceAnchor Greenlanders in Arctic climate research, experts tell EU ahead of policy updateExport controls have also delayed Hammond’s work. In one case, it took 18 months to get approval from the UK government to take seismometers, which measure earthquakes, to North Korea. “It was frustrating,” he said. “But they didn’t just say no.” However, one instrument, called an induction coil, used to measure how the earth conducts electricity, was blocked entirely because it can in theory be used to detect submarines. Karaoke bondingSince the collaboration started in 2011, Hammond has visited the country around 15 times, although the pandemic closed off North Korea for more than five years. A trip last November was Hammond’s first since the outbreak. Despite this lengthy interlude, Hammond has deep bonds in the country. The North Korean scientists Hammond works with are somewhat isolated, as they struggle to access the latest research papers and travel to international conferences. That said, they are “excellent geophysicists” and are “very well trained in the field,” he said. Over karaoke and chats about their families, “we’ve made friendships, for sure,” he said. The authorities have to sign-off things like the placement of seismometers, for example, but Hammond said these requests have been approved. “Everything that we've asked for within a scientific context has been delivered.”Scientific backchannels? These kind of personal links between scientists across political lines are one purported benefit of science diplomacy. During the Cold War, some historians argue, scientific contact between the US and Soviet Union laid a groundwork of trust for other cooperation, such as on arms control. Hammond agrees that backchannel contacts to North Korean geophysicists are hardly likely to defuse a military crisis on the Korean peninsula, but the simple fact of the scientific collaboration makes contacts between diplomats that little bit easier. “It creates opportunities to understand each other a little bit better,” he said. “When maybe you have those more difficult discussions as diplomats, it's coming from a slightly better place.” Cutting tiesDrawing lessons from the Mount Paektu mission for today’s links with Russian science isn’t simple. The analogy is far from exact, Hammond said, “because one is essentially a Cold War, versus a pretty hot war in the case of Russia.” But Hammond’s broader argument is that the challenges we face, such as climate change, pandemics, biodiversity loss, pollution and so on, have globalised in an unprecedented way, making blanket shutdowns in collaboration with any country unwise.He’s somewhat critical of the UN scientific sanctions imposed on North Korea in 2016, even though they did allow for exceptions. “I think a blanket halt to some of these things, when we face big global challenges [. . .] that’s quite a risky thing to do,” he said.Institutional endorsement?European academics are still by and large free to work individually with Russian counterparts. However, official, institutional partnerships have largely ended. Shortly following the full-scale invasion of Ukraine in 2022, Russian university rectors wrote a public letter endorsing the war, meaning European universities fear official collaboration could also be seen as a kind of endorsement. Hammond acknowledges there is a risk of legitimising regimes, and state-controlled universities, through scientific cooperation. “That’s the trade off you have to make,” he said. Strategic projectsWith Russia, instead of giving a green light to restart all Arctic science, a middle ground might be firing up a few carefully selected “strategic” projects, said Hammond. After all, European countries are still collaborating with Russia on the International Thermonuclear Experimental Reactor, an experimental nuclear fusion plant in the south of France. However, even if Europe did try to revive Arctic science with Russia, there’s no guarantee Russian scientists would play ball. A series of high-profile arrests of physicists in Russia accused of sharing their findings with the outside world has made collaboration fraught. Even before the invasion of 2022, “the Russian regime made it increasingly difficult, and this sort of discouraged people,” Dag Rune Olsen, rector of the Arctic University of Norway, told Science|Business last year.
The duo kite-skiing 4000 kilometres across Antarctica for science
An explorer and a glaciologist are kite-skiing across Antarctica with a ground-penetrating radar to gather data that will help understand the past and future of the ice sheet
‘Cocaine, gold and meat’: how Colombia’s Amazon became big business for crime networks
Armed groups have moved in to the space left by the Farc after the civil war, cutting down rainforest to control land and build thousands of kilometres of smuggling routes
