SCIENCES ENERGIES ENVIRONNEMENT /GOOGLE

 Dear olivier hartmanshenn,

Here is your customized Science X Newsletter for week 22:

	Scientists uncover a multibillion-year epic written into the chemistry of life The origin of life on Earth has long been a mystery that has eluded scientists. A key question is how much of the history of life on Earth is lost to time. It is quite common for a single species to "phase out" using a biochemical reaction, and if this happens across enough species, such reactions could effectively be "forgotten" by life on Earth.
	Study shows relatively low number of superspreaders responsible for large portion of misinformation on Twitter A small team of social media analysts at Indiana University has found that a major portion of tweets spreading disinformation are sent by a surprisingly small percentage of a given userbase.
	Musankwa sanyatiensis, a new dinosaur from Zimbabwe discovered Fossils found on the shoreline of Lake Kariba in Zimbabwe represent a completely new dinosaur species. This remarkable find, named Musankwa sanyatiensis, marks only the fourth dinosaur species named from Zimbabwe. The research detailing this significant discovery is published in Acta Palaeontologica Polonica.
	The Earth's changing, irregular magnetic field is causing headaches for polar navigation The Earth's liquid molten outer core, composed mostly of iron and nickel, exerts an electromagnetic field extending from the north and south pole that protects the planet from harmful solar particle radiation.
	Mountain building linked to major extinction event half a billion years ago As life on Earth rapidly expanded a little over 500 million years ago during the Cambrian explosion, Earth had tectonic plates slowly crashing into each other, building mountains and starting a series of unfortunate events that led to a mass extinction.
	A local bright spot among melting glaciers: 2,000 km of Antarctic ice-covered coastline has been stable for 85 years A whaler's forgotten aerial photos from 1937 have given researchers at the University of Copenhagen the most detailed picture of the ice evolution in East Antarctica to date. The results show that the ice has remained stable and even grown slightly over almost a century, though scientists observe early signs of weakening. The research offers new insights that enhance predictions of ice changes and sea level rise.
	Clues to mysterious disappearance of North America's large mammals 50,000 years ago found within ancient bone collagen 50,000 years ago, North America was ruled by megafauna. Lumbering mammoths roamed the tundra, while forests were home to towering mastodons, fierce saber-toothed tigers and enormous wolves. Bison and extraordinarily tall camels moved in herds across the continent, while giant beavers plied its lakes and ponds. Immense ground sloths weighing over 1,000 kg were found across many regions east of the Rocky Mountains.
	Astronomers find most distant galaxy using James Webb Space Telescope An international team of astronomers today announced the discovery of the two earliest and most distant galaxies ever seen, dating back to only 300 million years after the Big Bang. These results, using NASA's James Webb Space Telescope (JWST), mark a major milestone in the study of the early universe.
	Viper-mimicking snake from Asia is a unique branch in the reptile evolutionary tree The evolutionary history of the mock viper, a mildly venomous, widely distributed Asian snake that mimics highly venomous vipers for self-defense, has been solved. The mock viper represents a completely unique branch in the tree of life of snakes, and hence, it has been allocated into its own new family named Psammodynastidae. The study is published in Scientific Reports.
	This tiny fern has the largest genome of any organism on Earth In a new study published in the journal iScience, researchers from the Royal Botanic Gardens, Kew and the Institut Botànic de Barcelona (IBB-CSIC) in Spain present a new record-holder for the largest amount of DNA stored in the nucleus of any living organism on the planet.
	Large fossil discovery finally exposes origins of Welsh dragons A large fossil discovery has helped shed light on the history of dinosaurs in Wales. The find is reported in Proceedings of the Geologists' Association.
	New vestiges of the first life on Earth discovered in Saudi Arabia Stromatolites are the earliest geological record of life on Earth. These curious biotic structures are made of algae carpets growing toward the light and precipitating carbonates. After their first appearance 3.48 Ga ago, stromatolites dominated the planet as the sole living carbonate factory for almost three billion years.
	Fatal attraction: When endangered species try to mate with domestic relatives, both wildlife and people lose Sticks and stones aren't enough to thwart biological attraction, but sometimes those are the only tools available to pastoralists trying to prevent wildlife from eloping with their livestock.
	One of world's rarest whales sighted off California coast In an extraordinary sighting, a critically endangered North Pacific right whale was spotted off the Marin County coast on Friday, thrilling scientists.
	Glimpses of a volcanic world: New telescope images of Jupiter's moon Io rival those from spacecraft New images of Jupiter's volcano-studded moon Io, taken by the Large Binocular Telescope on Mount Graham in Arizona, offer the highest resolution of Io ever achieved with an Earth-based instrument. The observations were made possible by a new high-contrast optical imaging instrument, dubbed SHARK-VIS, and the telescope's adaptive optics system, which compensates for the blurring induced by atmospheric turbulence.
	Shear genius: Researchers find way to scale up wonder material, which could do wonders for the Earth Researchers at the University of Virginia School of Engineering and Applied Science have figured out how to take a miracle material, one capable of extracting value from captured carbon dioxide, and do what no one else has: make it practical to fabricate for large-scale application.
	Students say they've found an 'eco-friendly' way to trap and kill Japanese beetles Aditya Prabhu loved eating the peaches off the tree in the backyard of his mom's house. The only problem was the plant produced only a few fruits a year because Japanese beetles in the hundreds would eat at the leaves, depleting the plant's energy to make peaches.
	Researchers discover 'Trojan Horse' virus hiding in human parasite An international team led by researchers at the University of Toronto has found a new RNA virus that they believe is hitching a ride with a common human parasite.
	The death of Vulcan: Study reveals planet is actually an astronomical illusion caused by stellar activity A planet thought to orbit the star 40 Eridani A—host to Mr. Spock's fictional home planet, Vulcan, in the "Star Trek" universe—is really a kind of astronomical illusion caused by the pulses and jitters of the star itself, a new study shows.
	When should you neuter or spay your dog? Researchers update guidelines Researchers at the University of California, Davis, have updated their guidelines on when to neuter 40 pop