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☆ A single genetic tweak caused human ancestors to lose their tails 25 million years ago — but it came at a cost
▼ + stars: | 2024-03-04 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +6 min

A single genetic tweak that occurred among our ancestors 25 million years ago means humans today are unable to grow a tail, according to a new study. Scientists knew that a gene called TBXT was involved in the snipping of the tail. Asep Supriatna/Getty ImagesWandering DNA snipped off our tailsThe solution, they found, was in a type of "jumping gene" called an Alu element. Scientists found two Alu elements around a part of the TBXT gene, called Exon 6. Scientists tested their findings by inserting Alu sequences in mice.

Persons: —, Himanshu Sharma, it's, we've, Asep Supriatna, Miriam Konkel, Emily Casanova, Konkel, Casanova Organizations: Service, Business, Anadolu Agency, Getty, NYU, Grossman School of Medicine, Nature, NYU Grossman School of Medicine, Science Locations: Pushkar, Rajasthan, India

☆ SpaceX rockets are burning bright red holes in Earth's atmosphere and they're becoming too common for astronomers' comfort
▼ + stars: | 2023-11-30 | by ( Maiya Focht | Lloyd Lee | ) www.businessinsider.com time to read: +5 min

SpaceX rockets are ripping brightly colored holes in the Earth's ionosphere. AdvertisementSpaceX rocket launches are punching holes in part of Earth's atmosphere, called the ionosphere, and it's a beautiful sight to behold. The holes appear as bright red blobs in the sky. Recently, these spherical red blobs have been popping up over MacDonald Observatory in Texas, which has astronomers slightly worried for the future. AdvertisementHow ionospheric holes could disrupt astronomical observationsThese bright red blobs don't last long.

Persons: —, Stephen Hummel, Spaceweather.com, Hummel, Jeffrey Baumgardner, Baumgardner Organizations: SpaceX, Service, MacDonald Observatory, McDonald Observatory, Center for Space Physics, Boston University, Saturn, Kennedy Space Center, Science Magazine, McDonald Locations: Texas, California, Florida

☆ African skulls pillaged during German colonial rule have been matched to living relatives after DNA tests
▼ + stars: | 2023-09-06 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +4 min

German invaders pillaged thousands of skulls from East African colonies and brought them back. Using DNA analysis, a museum has managed to find relat of three of the skulls. These are thought to have belonged to indigenous Nama and Herero tribes who were killed in brutal wars by German invaders almost a century earlier, Science Magazine reported in 2011. AdvertisementAdvertisementIn the case of eight of the skulls, the museum collected enough information to seek out potential relatives. But we do know Meli met a brutal end when he was hanged and decapitated after leading an uprising against German invaders in 1900, per the BBC.

Persons: Mangi Meli, Meli Organizations: Service, Berlin's Museum, Berlin's Charité, BBC, Science Magazine Locations: Wall, Silicon, East Africa, Namibia, Kilimanjaro Region, Tanzania

☆ A mysterious 40,000-year-old hip bone suggests human ancestors and Neanderthals shared a cave — and perhaps a culture
▼ + stars: | 2023-08-24 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +6 min

The bone could mean modern humans shared the cave with Neanderthals. The early human bone was found in a cave at the center of a debate about Neanderthal culture. Maureille is an author of the study about the hip bone, and an archaeologist from the University of Bordeaux. This raises a controversial hypothesis: that modern humans and Neanderthals shared the mysterious Châtelperronien culture, which has long baffled scientists. Research there suggests modern humans shared a cave with Neanderthals and Denisovans about 45,000 years ago.

Persons: Bruno Maureille, Will Oliver, Maureille Organizations: Service, University of Bordeaux, Sci Locations: Wall, Silicon, Arcy, France, London, Europe, Spain, Renne, Siberia

☆ Opinion | The Pandemic Threat That Hasn’t Gone Away
▼ + stars: | 2023-05-12 | by ( Zeynep Tufekci | ) www.nytimes.com time to read: +2 min

His father said the man “wanted to die at home” rather than bring shame to his lab and his country. The incident came to light only after the desperate father threatened to kill himself unless his son sought medical help. Back in 2003 her supervisor had been infected with SARS in a lab. But the abilities scientists have developed in the past few decades have increased the threat. Scientists studying animals in the wild can carry back pathogens to their lab and the densely populated areas where they may be situated.

☆ Idealab founder Bill Gross started selling solar energy kits in 1973 at 15 years old. Now he's leading solar tech company Heliogen
▼ + stars: | 2022-11-28 | by ( Catherine Clifford | In Catclifford | ) www.cnbc.com time to read: +11 min

Idealab and Heliogen Founder Bill Gross speaks onstage during Vox Media's 2022 Code Conference on September 08, 2022 in Beverly Hills, California. "Because I was reading Popular Science magazine, I saw people used to take out little ads in the back," Gross told CNBC. One limiting factor for solar energy is its intermittency, which means it only delivers power when the sun is shining. But we're delivering the energy continuously because the energy is coming out of the rock bed," Gross told CNBC. The price of fossil fuels after Russia invaded Ukraine is a game changer," Gross told CNBC.

☆ Opinion | Science Has a Nasty Photoshopping Problem
▼ + stars: | 2022-10-29 | by ( Elisabeth Bik | ) www.nytimes.com time to read: +14 min

One evening in January 2014, I sat at my computer at home, sifting through scientific papers. Manipulated imagery in scientific papers can look ordinary at first glance. However, this ability, combined with my — what some might call obsessive — personality, helped me when hunting duplications in scientific images by eye. So when a scientist’s research shows a negative result, cheating can be tempting. Legitimate criticism of scientific research should receive legal protection.

☆ Un nou dezastru nuclear s-ar putea produce la centrala de la Cernobâl; Cum încearcă autoritățile să-l prevină
▼ + stars: | 2021-05-10 | by ( ) www.jurnal.md time to read: +2 min

Sursa foto: GettyUn nou dezastru nuclear s-ar putea produce la centrala de la Cernobâl; Cum încearcă autoritățile să-l previnăCentrala nucleară de la Cernobâl a fost distrusă în urmă cu zeci de ani într-un oribil accident radioactiv. „Este ca jarul într-o groapă pentru grătar”, a declarat pentru Science, chimistul nuclear al Universității din Sheffield, Neil Hyatt. Dar, înainte de a putea stopa un potențial dezastru, trebuie să ajungă la uraniul activ. Abandonat la câteva ore după explozia reactorului nuclear sovietic în 1986, orașul care găzduia cândva lucrătorii centralei nucleare și familiile lor există de atunci ca un oraș fantomă. Dar acum bulevardul său central a fost curățat de copaci și arbuști și chiar reconectat la rețeaua electrică.

Persons: Neil Hyatt, Maxim Saveliev Organizations: Science Magazine, Universității din, Science Locations: Universității din Sheffield, Kiev, Ucraina, Cernobîl, Fukushima, Cernobâl, Pripiat, Uniunea Sovietică

☆ Dezvoltarea rapidă a vaccinului împotriva COVID-19 a fost desemnată cea mai importantă descoperire a anului 2020
▼ + stars: | 2020-12-18 | by ( Onixmedia Srl | ) diez.md time to read: +2 min

Dezvoltarea accelerată a unui vaccin împotriva COVID-19 a fost desemnată cea mai importantă realizare ştiinţifică a anului, fiind onorată cu titlul Science 's Breakthrough of the Year 2020 din partea prestigioasei reviste Science. „Pentru mulţi, 2020 a fost un an de viaţă în suspans, pe măsură ce coronavirusul se răspândea pe întreaga planetă forţând populaţia să se izoleze şi, de multe ori, să se despartă de fiinţele dragi. Pentru cercetătorii din biomedicină din prima linie a luptei împotriva COVID-19 cursa dezvoltării unui vaccin s-a desfăşurat în ritm alert. To honor this feat, Science has named the rapid development of effective #vaccines against COVID19 as its 2020 Breakthrough of the Year. Amintim că și Federația Rusă a dezvoltat un vaccin împotriva COVID-19 care a fost aprobat de autoritățile din Rusia și a început vaccinareaa populației.

Persons: giving, Janssen, Sanofi Pasteur, Jon Cohen Organizations: Science, Science Magazine, Universitatea Oxford Locations: China, CanSino, SUA, Europa, americană, Federația Rusă, Rusia

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