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Extremely Rare Plutonium Found in the Depths of Pacific Ocean Could Be Older Than Our Solar System. : worldnews From “World News”



Sounds to me like the authors of the actual paper are arguing the exact opposite of what the headline is reporting. That some other as of yet unexplained process is producing these elements, not a supernova billions of years before the solar system existed. But I am no nuclear scientist.Their abstract:Half of the chemical elements heavier than iron are produced by the rapid neutron capture process (r-process). The sites and yields of this process are disputed, with candidates including some types of supernovae (SNe) and mergers of neutron stars. We search for two isotopic signatures in a sample of Pacific Ocean crust—iron-60 (60Fe) (half-life, 2.6 million years), which is predominantly produced in massive stars and ejected in supernova explosions, and plutonium-244 (244Pu) (half-life, 80.6 million years), which is produced solely in r-process events. We detect two distinct influxes of 60Fe to Earth in the last 10 million years and accompanying lower quantities of 244Pu. The 244Pu/60Fe influx ratios are similar for both events. The 244Pu influx is lower than expected if SNe dominate r-process nucleosynthesis, which implies some contribution from other sources.The author even acknowledges that at the end of their own article:According to the research, r-processes or rapid neutron capture processes — the processes inside stars responsible for the formation of these metals — do happen in supernovae but they could not have produced enough to explain the amount of presence of heavy metals on the Earth.







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At least 9 dead in rare Russian school shooting From “World”




Video footage showed children jumping from school windows to escape the gunfire.







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Hospitals across India report Covid-19 patients with rare deadly black fungus that decays brains and lungs. Dozens of hospitals across India have started to report cases of Coronavirus patients being hit by a rare black fungus which has a mortality rate of about 50 per cent. : worldnews From “World News”



When hospitals give oxygen to patients, they run the oxygen through water (usually sterilized water) to give it humidity.There is a risk that the fungus can contaminate the water or the equipment and be transferred to the patient’s airways.Fungus grow well in damp, dark place, just like our respiratory system is.







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why are South Africa’s rare desert plants vanishing? : worldnews From “World News”



Richtersveld’s position in the Northern Cape, at the intersection of three biomes, coupled with its geological complexity – the park is home to the oldest mountains in the world – and the fact that it straddles winter and summer rainfall regions, makes it a botanist’s paradise. With more than 3,000 plant species, including 400 endemic to the region, it is “easily the most biologically diverse desert in the world”, Van Wyk says proudly.Despite being 20 times smaller and having much lower rainfall, Richtersveld has more plant species than the country’s famous Kruger national park. It is, says Van Wyk, “the most important succulent laboratory in the world”.But it is this variety of rare succulents that draws the poachers. Many Richtersveld species are so specialised that they grow only in one valley or on one mountain slope. In extreme cases an entire species can be confined to an area smaller than a football pitch, so a poacher could render a species extinct in a morning. In Van Wyk’s estimation, plant poaching might be more lucrative than the country’s rhino horn industry.







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Egyptian archaeologists unearth rare tombs dated back to before Pharaohs From “World News”



submitted by /u/PauloPatricio [comments]







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India’s prime minister Modi has suffered a rare political defeat in a key state election in West Bengal, amid signs of a voter backlash over his handling of the coronavirus disaster : worldnews From “World News”



This is the best tl;dr I could make, original reduced by 83%. (I’m a bot)India’s prime minister has suffered a rare political defeat in a key state election, amid signs of a voter backlash over his handling of the coronavirus disaster as the country recorded a record number of deaths.Narendra Modi had been expected to make significant gains on Sunday in West Bengal, one of few states where his rightwing Bharatiya Janata party does not have a parliamentary majority.Vinay Sitapati, an assistant professor of political science at Ashoka university, said: “Had the BJP won Bengal, it would have been spun as validation of their nationwide Covid approach. We should not make the opposite mistake: the Bengal loss is because of a combination of longstanding local factors.” He predicted regional leaders and an “Eventual patchwork of parties” – rather than a weakened Congress party – would now take on Modi nationally.Extended Summary | FAQ | Feedback | Top keywords: Modi#1 Bengal#2 state#3 India#4 BJP#5







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SpaceX returns 4 astronauts to Earth; rare night splashdown : worldnews From “World News”



This is the best tl;dr I could make, original reduced by 84%. (I’m a bot)SpaceX safely returned four astronauts from the International Space Station on Sunday, making the first U.S. crew splashdown in darkness since the Apollo 8 moonshot.The 167-day mission was the longest for a crew capsule launching from the U.S. The previous record of 84 days was set by NASA’s final Skylab station astronauts in 1974.Saturday night’s undocking left seven people at the space station, four of whom arrived a week ago via SpaceX.”Earthbound!” NASA astronaut Victor Glover, the capsule’s pilot, tweeted after departing the station.SpaceX began supply runs in 2012 and, last May, launched its first crew, ending NASA’s reliance on Russia for astronaut transport.Extended Summary | FAQ | Feedback | Top keywords: SpaceX#1 astronaut#2 capsule#3 Station#4 NASA#5







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Quebec confirms 1st death related to rare AstraZeneca-linked blood clots, emphasizes benefits outweigh risks : worldnews From “World News”



You’re either risking an incredibly low chance of death from the vaccine, or a much higher chance of death from the virus. Also, you’re ignoring the fact that Covid itself can give people blood clots!I’m predisposed to blood clots, but I got AZ last week, the second it was available. Honestly, this reaction is like being on a ship that’s sinking and saying no thanks to a lifejacket cuz there might be sharks in the water.







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Rare Siberian Tiger Caught After Attacking A Villager In Heilongjiang From “NDTV News – World-news”



A video showed the tiger running and knocking a woman down in a road. (Representational)Beijing: A rare tiger that attacked a villager and damaged a car in northeast China was caught after an hours-long pursuit by police and forestry officials and will be held for 45 days of observation, state media reported on Monday.A resident in the village of Linhu in Heilongjiang province, which borders Russia, was sent to hospital for surgery and is in a stable condition after being attacked by the big cat on Friday, state broadcaster CGTN reported.The wild Siberian tiger is a healthy male aged 2 to 3 years and weighing 225 kilograms, according to a Xinhua report posted on social media platform Weibo, citing local officials. The animal will be held for observation and quarantine purposes, it said.A CGTN video showed the tiger running and knocking a woman down in a road before moving on, with a drone tracking the animal prowling through farmland. The tiger also smashed the window of a car as the occupants tried to escape. They were unharmed.”It was too late for us to drive away, the tiger came straight at us and broke the window,” the car’s driver said in the CGTN video.Footage showed the tranquilized animal later lying motionless in woodland after dark, surrounded by men with flashlights wrapping it in a plastic sheet.The Siberian tiger, also known as the Amur tiger, is highly endangered, numbering just a few hundred, of which 20 are sometimes seen in two northeastern Chinese provinces, according to the World Wide Fund for Nature.(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)







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Rare Basquiat ‘skull’ painting could fetch more than $50 million From “International: Top News And Analysis”



A woman looks at a Basquiat painting titled “In This Case” that is coming up for auction at Christies, with an estimate of over $50 million.Source: Christie’sIn a sign that the art market is flush with cash, a rare skull painting by Jean-Michel Basquiat is being auctioned by Christie’s with an estimate of more than $50 million.The painting will be the centerpiece of Christie’s sale of 21st century art in May in New York. Christie’s 20th century and 21st century auctions will also feature a Pablo Picasso estimated to go for more than $50 million and other trophy works by Claude Monet, Mark Rothko and Vincent Van Gogh — a sign that lofty prices are enticing sellers to part with major works.Christie’s doesn’t have an official estimate on the Basquiat work, called “In this Case,” but the auction house is telling collectors upon request that the estimate is over $50 million. Dealers said it could go for twice that.The piece is one of a trio of “skull” paintings Basquiat made. In 2017, another sold at a Christie’s auction for $110 million. Dealers said “In this Case” — with its even more dramatic red and yellow color palette — could fetch more.”As his final expression in the series, it is the most raw and visceral and emotionally charged of the three paintings, with Basquiat holding nothing back,” said Ana Maria Celis, senior specialist and head of 21st century art at Christie’s.Basquiat, a former New York graffiti artist who died at age 27 in 1988, has quickly become a favorite among wealthy global collectors and museums, especially amid the growing awareness of racial justice and diversity issues. His “Warrior” painting sold at auction in Hong Kong last year for $42 million, making it the most expensive Western artwork ever sold at auction in Asia.While Christie’s won’t comment on the identity of the seller, dealers say it is a European collector, and they expect bids from around the world.”The appetite for Basquiat’s works is global and has dramatically expanded in recent years, ” Celis said.







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