Astronomy

Traces of antimatter in cosmic rays reopen the search for 'WIMPs' as dark matter

One of the great challenges of modern cosmology is to reveal the nature of dark matter. We know it exists (it constitutes more than 85% of the matter in the universe), but we have never seen it directly and still do not know ...

Planetary Sciences

X-rays advance understanding of Earth's core-mantle boundary and super-Earth magma oceans

Researchers at the Department of Energy's SLAC National Accelerator Laboratory have revealed new details about Earth's core-mantle boundary and similar regions found in exoplanets.

Scientists develop novel method for strengthening PVC products

Researchers have developed a way to make one type of plastic material more durable and less likely to shed dangerous microplastics. Their study has identified a secure way to attach chemical additives to polyvinyl chloride ...

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Medical Xpress

Tech Xplore

Here's why B cells benefit from booster shots

Certain infectious diseases, such as COVID or the flu, evolve constantly, shapeshifting just enough to outmaneuver our immune systems and reinfect us repeatedly. But subsequent reinfections often don't lead to the most severe ...

How doxycycline for STI prevention affects the gut microbiome

Taking a dose of the oral antibiotic doxycycline after a high-risk sexual encounter has dramatically reduced the incidence of sexually transmitted infections (STIs) in places where the strategy is being tried.

CRISPR study lays groundwork for overcoming ovarian cancer

A team of researchers at the University of Colorado Anschutz Medical Campus has gained attention for their work on rethinking ovarian cancer disease progression and treatment. Equipped with highly advanced technology, they ...

Researchers develop new model to predict surface atom scattering

A group of Cornell-led researchers in the Center for Bright Beams has developed a new theoretical approach to calculate how atoms scatter from surfaces. The method, developed by recently conferred Cornell physics Ph.D. Michelle ...

Swiss want moratorium on deep-sea mining

Switzerland, a global commodities trading hub, decided Wednesday to push for a moratorium on commercial exploitation of the international seabed area, which has enormous mineral resources.

Study shows air pollution speeds snowmelt

Diminished anthropogenic pollutant emissions during 2020 COVID-19 lockdowns reduced snowmelt in the Himalayas, according to a study published in the journal PNAS Nexus.

Diatom / bacteria symbiosis in the open ocean explored

A study published in PNAS Nexus explores the genetic expression of a photosynthetic symbiont that lives inside an abundant marine organism. Marine diatoms are responsible for one-fifth of global photosynthesis. Many are coastal, ...

Got weeds? US environmentalists call in the G.O.A.T.s

The landscaping squad of Mocha, Wynonna, Nelson and Beckham yank out weeds at a Texas park. They don't carry chainsaws or use herbicides. They are goats, and this environmentally friendly initiative is, for them, merely lunch.