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Science News Archive October 2026


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Researchers use eggshells (yes, eggshells) to make stronger, lighter metal alloys

Researchers have developed a technique to produce high-quality magnesium alloys using eggshells as a low-cost, environmentally sustainable alternative to conventional calcium materials. The process, called friction stir extrusion, converts eggshell calcium carbonate into calcium oxide and produces a high-strength alloy.

SourceNorth Carolina State University·JournalJournal of Magnesium and Alloys·TypeExperimental study·DateOct 1, 2026

Immune ageing accelerates around 40 and 60, with key differences between men and women

Scientists at Duke-NUS Medical School analyzed 3.8 million immune cells from nearly 2,000 people to uncover how healthy immune cells change differently in men and women as they age. The study found distinct waves of immune ageing and sex-specific changes, shedding light on why some autoimmune conditions disproportionately affect women.

SourceDuke-NUS Medical School·JournalNature Communications·TypeMeta-analysis·DateOct 1, 2026

Mount Sinai awarded $2 million to launch international clinical trial on spontaneous coronary artery dissection

Mount Sinai has launched an international clinical trial to determine the optimal treatment for spontaneous coronary artery dissection (SCAD), a sudden tear in the wall of a heart artery that can reduce blood flow and cause an uncommon type of heart attack. The trial, known as SCAD-ALIGN, will compare a moderate antiplatelet strategy o...

Simply telling teenagers ‘just don’t send nudes’ does not work and can deepen shame, researchers warn

Current responses to teenagers sharing sexual images are often fragmented, punitive, and poorly equipped to address evolving threats like sextortion and deepfakes. Researchers propose a new approach called 'safe uncertainty,' which prioritizes restoring safety, dignity, and trust in cases of image-based sexual abuse.

SourceUniversity of Surrey·JournalSexualities·TypeObservational study·DateOct 1, 2026

Catalog of mitochondria across life’s family tree unearths new roles for the cell’s powerhouse

Researchers have built a comprehensive catalog of mitochondrial proteins across six eukaryotic organisms, including five parasites and one plant, providing insights into the organelle's evolution and functions. The study suggests new therapeutic targets for neglected tropical diseases and sheds light on the origins of mitochondria in e...

Staphylococcus aureus is highly resistant and virulent in milk

Staphylococcus aureus grows differently in milk and serum, with thicker membranes and increased pigment production in milk, making it more virulent and resistant to antibiotics. This unique relationship between milk lipids and bacterial severity suggests a need to adapt treatment protocols for mastitis infections.

Sometimes it helps to take a step back

A study found that family caregivers who write immediately after a stressful event or while with the care recipient tend to focus on emotional expression, whereas those who wait or change their environment exhibit more objective reflection and problem-solving. The researchers hope their findings will encourage caregivers to recognize t...

SourceUniversity of Tokyo·TypeExperimental study·DateOct 1, 2026

Mount Sinai study uncovers how loss of the critical tumor suppressor p53 enables mutant cells to expand through normal tissue

A Mount Sinai study reveals that loss of p53 can reorganize Wnt signaling into a radial gradient, allowing mutant cells to expand through normal tissue. The researchers found that the spatial organization of Wnt signaling, rather than its overall activity, plays a critical role in this process.

Science or strategy? Researchers call for transparency over the Anthropocene rejection

A commentary paper by Max Planck Institute researchers argues that the IUGS decision to reject the Anthropocene proposal was based on compromised evaluation and invalid voting processes. The authors demand transparency and procedural legitimacy, citing the importance of geoscience informing societal understanding of Earth system change.

SourceMax Planck Institute of Geoanthropology·JournalEarth's Future·TypeCommentary/editorial·DateOct 1, 2026

Alzheimer’s disease and aging reshape brain communication in different ways

A new study from Lund University reveals that Alzheimer's disease changes brain communication in distinct patterns from normal aging, with early alterations detectable before cognitive symptoms emerge. The study analyzed brain imaging from over 1,000 people, showing that connectivity patterns between brain regions change in coordinated...

SourceLund University·JournalNature Neuroscience·TypeImaging analysis·DateOct 1, 2026

Study links 90+-day spaceflights to higher rates of hip fractures in astronauts

Researchers found a higher incidence of hip fractures in astronauts after long-duration spaceflights, occurring at a younger age than expected in non-astronauts. The study suggests the need for expanded assessment of long-term skeletal health in astronauts to safeguard their health ahead of planned long-duration space missions.

SourceElsevier·JournalMayo Clinic Proceedings·TypeData/statistical analysis·DateOct 1, 2026

Following ancient rain toward the origins of life on Mars

A new map shows where atmospheric formaldehyde on early Mars is likely to have reached the surface, potentially providing clues to the origins of life on the planet. Water vapor played a crucial role in formaldehyde formation and delivery, with water-rich regions predicted to receive more formaldehyde than drier areas.

SourceTohoku University·JournalThe Planetary Science Journal·DateOct 1, 2026

"Mom says a pink flight jacket is ok"

A new study examines the Instagram activity of three women astronauts and science influencers, finding that personal experiences, identity, and platform-specific tools contribute to shaping their messages. The researchers identified six broad topics, seven message frames, and five types of communication tactics, highlighting the strate...

SourceSissa Medialab·JournalJournal of Science Communication·TypeCase study·DateOct 1, 2026