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Process that might have led to first organic molecules

Ocean bubbles (stock image). Credit: © kichigin19 / stock.adobe.com New research led by the American Museum of Natural History and funded by NASA identifies a process that might have been key in producing the first organic molecules on Earth about 4 billion years ago, before the origin of life. The process, which is similar to…

Process that might have led to first organic molecules

Ocean bubbles (stock image). Credit: © kichigin19 / stock.adobe.com New research led by the American Museum of Natural History and funded by NASA identifies a process that might have been key in producing the first organic molecules on Earth about 4 billion years ago, before the origin of life. The process, which is similar to…

Process that might have led to first organic molecules

Ocean bubbles (stock image). Credit: © kichigin19 / stock.adobe.com New research led by the American Museum of Natural History and funded by NASA identifies a process that might have been key in producing the first organic molecules on Earth about 4 billion years ago, before the origin of life. The process, which is similar to…

Possible marker of life spotted on venus

Planet Venus (stock image; elements furnished by NASA). Credit: © Igor_Filonenko / stock.adobe.com An international team of astronomers today announced the discovery of a rare molecule -- phosphine -- in the clouds of Venus. On Earth, this gas is only made industrially or by microbes that thrive in oxygen-free environments. Astronomers have speculated for decades…

Process that might have led to first organic molecules

Ocean bubbles (stock image). Credit: © kichigin19 / stock.adobe.com New research led by the American Museum of Natural History and funded by NASA identifies a process that might have been key in producing the first organic molecules on Earth about 4 billion years ago, before the origin of life. The process, which is similar to…

Possible marker of life spotted on venus

Planet Venus (stock image; elements furnished by NASA). Credit: © Igor_Filonenko / stock.adobe.com An international team of astronomers today announced the discovery of a rare molecule -- phosphine -- in the clouds of Venus. On Earth, this gas is only made industrially or by microbes that thrive in oxygen-free environments. Astronomers have speculated for decades…

Process that might have led to first organic molecules

Ocean bubbles (stock image). Credit: © kichigin19 / stock.adobe.com New research led by the American Museum of Natural History and funded by NASA identifies a process that might have been key in producing the first organic molecules on Earth about 4 billion years ago, before the origin of life. The process, which is similar to…

Possible marker of life spotted on venus

Planet Venus (stock image; elements furnished by NASA). Credit: © Igor_Filonenko / stock.adobe.com An international team of astronomers today announced the discovery of a rare molecule -- phosphine -- in the clouds of Venus. On Earth, this gas is only made industrially or by microbes that thrive in oxygen-free environments. Astronomers have speculated for decades…

Finger fossil puts people in Arabia at least 86,000 years ago

A single human finger bone from at least 86,000 years ago points to Arabia as a key destination for Stone Age excursions out of...

True size of prehistoric mega-shark finally revealed

Megalodon illustration (stock image). Credit: © warpaintcobra / stock.adobe.com To date only the length of the legendary giant shark Megalodon had been estimated. But now, a new study led by the University of Bristol and Swansea University has revealed the size of the rest of its body, including fins that are as large as an…

Researchers discover a specific brain circuit damaged by social isolation during...

Person and shadow, loneliness concept (stock image). Credit: © Jorm S / stock.adobe.com Loneliness is recognized as a serious threat to mental health. Even as our world becomes increasingly connected over digital platforms, young people in our society are feeling a growing sense of isolation. The COVID-19 pandemic, which forced many countries to implement social…

Meteorite study suggests Earth may have been wet since it formed

Planet Earth (stock image). Credit: © dell / stock.adobe.com A new study finds that Earth's water may have come from materials that were present in the inner solar system at the time the planet formed -- instead of far-reaching comets or asteroids delivering such water. The findings published Aug. 28 in Science suggest that Earth…

Exploding stars may have caused mass extinction on Earth, study shows

Devonian landscape concept illustration (stock image). Credit: © nicolasprimola / stock.adobe.com Imagine reading by the light of an exploded star, brighter than a full moon -- it might be fun to think about, but this scene is the prelude to a disaster when the radiation devastates life as we know it. Killer cosmic rays from…

Cooling of Earth caused by eruptions, not meteors

Volcanic eruption (stock image). Credit: © Eva Kali / stock.adobe.com Ancient sediment found in a central Texas cave appears to solve the mystery of why the Earth cooled suddenly about 13,000 years ago, according to a research study co-authored by a Texas A&M University professor. Michael Waters, director of The Center for The Study of…

Vikings had smallpox and may have helped spread the world’s deadliest...

Viking ship (stock image). Credit: © Alex Stemmer / stock.adobe.com Scientists have discovered extinct strains of smallpox in the teeth of Viking skeletons -- proving for the first time that the killer disease plagued humanity for at least 1400 years. Smallpox spread from person to person via infectious droplets, killed around a third of sufferers…

Neanderthals may have had a lower threshold for pain

Depiction of early humans, photo concept (stock image). Credit: © Gorodenkoff / stock.adobe.com Pain is mediated through specialized nerve cells that are activated when potentially harmful things affect various parts of our bodies. These nerve cells have a special ion channel that has a key role in starting the electrical impulse that signals pain and…

Lab-made virus mimics COVID-19 virus

Laboratory researcher, concept photo (stock image). Credit: © tilialucida / stock.adobe.com Airborne and potentially deadly, the virus that causes COVID-19 can only be studied safely under high-level biosafety conditions. Scientists handling the infectious virus must wear full-body biohazard suits with pressurized respirators, and work inside laboratories with multiple containment levels and specialized ventilation systems. While…

Plato was right: Earth is made, on average, of cubes

Statue of Plato (stock image). Credit: © anastasios71 / stock.adobe.com Plato, the Greek philosopher who lived in the 5th century B.C.E., believed that the universe was made of five types of matter: earth, air, fire, water, and cosmos. Each was described with a particular geometry, a platonic shape. For earth, that shape was the cube.…

Age-related impairments reversed in animal model

Eosinophils surrounded by red blood cells (stock image). Credit: © Kateryna_Kon / stock.adobe.com Frailty and immune decline are two main features of old age. Researchers from the University of Bern and the University Hospital Bern now demonstrate in an animal model that these two age-related impairments can be halted and even partially reversed using a…

Asteroid impact, not volcanoes, made the Earth uninhabitable for dinosaurs

Illustration of dinosaurs and asteroid (stock image). Credit: © lassedesignen / stock.adobe.com Modelling of the Chicxulub asteroid impact 66 million years ago shows it created a world largely unsuitable for dinosaurs to live in. The asteroid, which struck the Earth off the coast of Mexico at the end of the Cretaceous era 66 million years…

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