Space Exploration

Aurora mysteries unlocked with NASA's THEMIS mission

A special type of aurora, draped east-west across the night sky like a glowing pearl necklace, is helping scientists better understand the science of auroras and their powerful drivers out in space. Known as auroral beads, ...

Earth Sciences

Study rewrites the recent history of productive Cascade Arc volcanoes

Volcanic eruptions in the Cascade Range of the Pacific Northwest over the last 2.6 million years are more numerous and closely connected to subsurface signatures of currently active magma than commonly thought, according ...

Preexisting drug shows promise in fight against COVID-19

First appearing in late 2019 in Wuhan City, China, the SARS-CoV-2 virus continues to cause sickness and death across the globe. Researchers and scientists have been looking at multiple solutions to treat COVID-19, including ...

Study hints, can't prove, survivor plasma fights COVID-19

Mayo Clinic researchers reported a strong hint that blood plasma from COVID-19 survivors helps other patients recover, but it's not proof and some experts worry if, amid clamor for the treatment, they'll ever get a clear ...

AI software enables real-time 3-D printing quality assessment

Oak Ridge National Laboratory researchers have developed artificial intelligence software for powder bed 3-D printers that assesses the quality of parts in real time, without the need for expensive characterization equipment.

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Medical Xpress

Diseases, Conditions, Syndromes
Denmark makes masks compulsory on public transport

Tech Xplore

Electronics & Semiconductors
Amazon Alexa bug exposed voice data

Black silicon photodetector breaks the 100% efficiency limit

Aalto University researchers have developed a black silicon photodetector that has reached above 130% efficiency. Thus, for the first time, a photovoltaic device has exceeded the 100% limit, which has earlier been considered ...

A light bright and tiny: Scientists build a better nanoscale LED

A new design for light-emitting diodes (LEDs) developed by a team including scientists at the National Institute of Standards and Technology (NIST) may hold the key to overcoming a long-standing limitation in the light sources' ...

200,000 years ago, humans preferred to sleep in beds

Researchers in South Africa's Border Cave, a well-known archeological site perched on a cliff between eSwatini (Swaziland) and KwaZulu-Natal in South Africa, have found evidence that people have been using grass bedding to ...

Reconstructing global climate through Earth's history

A key component when forecasting what the Earth's climate might look like in the future is the ability to draw on accurate temperature records of the past. By reconstructing past latitudinal temperature gradients (the difference ...

Stabilizing monolayer nitrides with silicon

In a new report published in Science, Yi-Lun Hong and a group of research scientists in materials science, engineering, and advanced technology in China and the U.K. investigated two-dimensional (2-D) materials to discover ...

Marine food webs under increasing stress

Scientists at the University of Adelaide have found growing evidence that marine ecosystems will not cope well with rising sea temperatures caused by climate change.

Simulations show lander exhaust could cloud studies of lunar ices

A new study led by scientists at the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, shows that exhaust from a mid-sized lunar lander can quickly spread around the Moon and potentially contaminate scientifically ...

Scientists demonstrate how genetic variations cause eczema

New research supported by the National Institutes of Health delineates how two relatively common variations in a gene called KIF3A are responsible for an impaired skin barrier that allows increased water loss from the skin, ...

Space bricks for lunar habitation

In what could be a significant step forward in space exploration, a team of researchers from the Indian Institute of Science (IISc) and the Indian Space Research Organisation (ISRO) has developed a sustainable process for ...

How to teach teachers amidst the pandemic

In a new study published this week in The Learning Professional, a University of Colorado Denver researcher looked at best practices for educating teachers in an online environment. Known as professional learning, this type ...