reveals

'Amazing' DNA 2 million years old reveals ancient ecosystem in Greenland

‘Amazing’ DNA 2 million years old reveals ancient ecosystem in Greenland

An illustration of Cape Copenhagen 2 million years ago.Drawing: Beth Zaiken A team of scientists has sequenced the oldest DNA to date, found in permafrost in the far north of Greenland. The DNA is 2 million years old, surpassing the previous oldest DNA record by a million years. The genetic material came from 41 sediment …

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Webb Telescope reveals atmosphere of distant planet

Webb Telescope reveals atmosphere of distant planet

Share this Article You are free to share this article under the Attribution 4.0 International License. NASA’s James Webb Space Telescope has marked another first in its release of stunning images: a molecular and chemical portrait of the skies of a distant world. The telescope’s array of highly sensitive instruments was trained on the atmosphere …

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An artist

Chile’s Very Large Telescope reveals the productive antics of sister stars

When stars are born, most of the time they arrive in the universe as twins. In the first stage of stellar creation, a large cloud of gas and dust collapses due to gravity, often breaking into pieces. If each piece collapses again, multiple stars will be born from the same gas cloud. These nascent suns …

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Arks of Genetic Diversity

New research reveals how genes turn on and off

By Linda B. Glaser, Cornell University December 5, 2022 Researchers from Cornell University have revealed how a key mechanism in genes is controlled. Researchers at Cornell University have discovered a crucial mechanism in gene control through the study of yeast, a simple organism needed to produce beer and bread. Gene transcription, the complex process by …

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Osteoarthritis: a multi-ancestry analysis reveals new genetic loci associated with the disease

Osteoarthritis: a multi-ancestry analysis reveals new genetic loci associated with the disease

The first large multi-ancestry genetic study of osteoarthritis, or osteoarthritis, found 10 new genetic loci associated with osteoarthritis, and the results showed that some of the regions associated with osteoarthritis are found robustly in every ancestry of the population studied. The first large multi-ancestry genetic study of osteoarthritis, or osteoarthritis, found 10 new genetic loci …

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New quantum dot study reveals implications for biological imaging

New quantum dot study reveals implications for biological imaging

Graphic abstract. Credit: Nano-letters (2022). DOI: 10.1021/acs.nanolett.2c03563 A new study involving researchers at the University of Illinois at Chicago has taken an important step in the synthesis of multifunctional photonic nanomaterials. In an article published in the journal Nano-letters, they report the synthesis of “giant” core-shell semiconductor quantum dots with record emissive lifetimes. Additionally, lifetimes …

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Giant Mantle Plume Reveals Mars Is More Active Than Thought

Giant Mantle Plume Reveals Mars Is More Active Than Thought

An artist’s impression of an active mantle plume – a large mass of hot, floating rock – rising from deep within Mars and pushing up Elysium Planitia, a plain in the planet’s northern lowlands. The volcanism at Elysium Planitia originates from the Cerberus Fossae, highlighted in red, a collection of young fissures that stretch more …

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A Murder in the Amazon Reveals What the Fight for the Rainforest Is All About

A Murder in the Amazon Reveals What the Fight for the Rainforest Is All About

ISouth of the Amazon, just at the crossroads of two dirt roads, is a small bar a little set back from the highway. There’s no name above the door because it’s part of a house, really, but everyone calls it Guiga’s bar, after its owner. Like many bars dotted around the area, Guiga’s is run …

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Exoplanet WASP-39 b Illustration

New molecule: Webb reveals an exoplanet atmosphere “Hot Saturn”

This illustration represents the exoplanet WASP-39b and its star. Credit: Melissa Weiss/Center for Astrophysics | Harvard and Smithsonian New Webb Space Telescope observations of WASP-39b reveal a molecule never before seen in a planet’s atmosphere – sulfur dioxide – among other details. The telescope’s highly sensitive instrument array was trained on the atmosphere of WASP-39b, …

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