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44 articles from ScienceDaily

Paired with super telescopes, model Earths guide hunt for life

Astronomers have created five models representing key points from our planet's evolution, like chemical snapshots through Earth's own geologic epochs. The models will be spectral templates for astronomers to use in the approaching new era of powerful telescopes, and in the hunt for Earth-like planets in distant solar systems.

Coral tells own tale about El Niño's past

Scientists use data from ancient coral to build a record of temperatures in the tropical Pacific Ocean over the last millennium. The data question previous links between volcanic eruptions and El Niño events.

Neanderthals ate mussels, fish, and seals too

Over 80,000 years ago, Neanderthals fed themselves on mussels, fish and other marine life. The first evidence has been found by an international team in the cave of Figueira Brava in Portugal. The excavated layers date from 86,000 to 106,000 years ago, the period when Neanderthals settled in Europe. Sourcing food from the sea at that time had only been attributed to anatomically modern humans in...

What can be learned from the microbes on a turtle's shell?

Researchers have found that a unique type of algae, usually only seen on the shells of turtles, affects the surrounding microbial communities. It is hoped that these findings can be applied to support the conservation of turtles. Previous research has shown that a diverse microbiome can protect animals against infections.

Designing lightweight glass for efficient cars, wind turbines

A new machine-learning algorithm for exploring lightweight, very stiff glass compositions can help design next-gen materials for more efficient vehicles and wind turbines. Glasses can reinforce polymers to generate composite materials that provide similar strengths as metals but with less weight.

The genetic quest to understand COVID-19

The novel coronavirus SARS-CoV-2 that causes COVID-19 is now likely to become the fifth endemic coronavirus in humans. Scientists are working to decipher its genome to help us stop other coronaviruses entering the human population.

How stable is deep ocean circulation in warmer climate?

If circulation of deep waters in the Atlantic stops or slows due to climate change, it could cause cooling in northern North America and Europe - a scenario that has occurred during past cold glacial periods. Now, a new study suggests that short-term disruptions of deep ocean circulation occurred during warm interglacial periods in the last 450,000 years, and may happen again.

Scientists create model to measure how cells sense their surroundings

Our body's ability to detect disease, foreign material, and the location of food sources and toxins is all determined by a cocktail of chemicals that surround our cells, as well as our cells' ability to 'read' these chemicals. Cells are highly sensitive. In fact, our immune system can be triggered by the presence of just one foreign molecule or ion. Yet researchers don't know how cells achieve...

Missing link in coronavirus jump from bats to humans could be pangolins, not snakes

As scientists scramble to learn more about the SARS-CoV-2 coronavirus, two recent studies of the virus' genome reached controversial conclusions: namely, that snakes are intermediate hosts of the new virus, and that a key coronavirus protein shares 'uncanny similarities' with an HIV-1 protein. Now, a study refutes both ideas and suggests that scaly, anteater-like animals called pangolins are the...

Data on worldwide respect for academic freedom

Academic freedom is fundamental to scientific progress, pursuit of truth, quality higher education and international collaboration. Universities and states have signed statements of their commitment to safeguard academic freedom, yet in practice, they do not always implement them. How severe are infringements of academic freedom? Are these infringements getting better or worse? Scientists have...