NASA’s Perseverance rover drilled Martian “leopard spot” rocks containing minerals and textures resembling microbial activity on Earth. The findings, vivianite and greigite nodules, may represent the clearest potential bio-signature yet, though not definitive proof of life. The sealed core sample may finally confirm whether Mars once hosted microbial life when analyzed on Earth.

NASA rover finds possible bio-signatures in Martian rock samples

Scientists have found that pterostilbene "significantly" improves skin elasticity, reduces wrinkles, enhances collagen, thickens the epidermal layer and refines skin pores. The study, published in the Journal of Dermatologic Science and Cosmetic Technology, analysed a 0.1% pterostilbene anti-ageing cream over 28 days against a control emulsion. Pterostilbene is a naturally occurring phytochemical.

Scientists find anti-ageing cream that 'significantly' improves skin

Consuming a high-fat diet (HFD) for just four days can affect brain health and increase the risk of cognitive dysfunction, according to study published in Neuron. Study found that brain cells in hippocampus, called CCK interneurons, become overly active after having HFD, which disrupts hippocampus' ability to process memory. HFD affects brain even before onset of weight gain or diabetes.

Just 4 days of junk food can affect brain health: Study

Michigan University scientists have suggested that dinosaurs were enormous "ecosystem engineers" and their extinction re-engineered Earth. Dinosaurs knocked down vegetation, causing rivers to spill openly, but after extinction, forests flourished, which stabilised riverbanks, the study found. "It's rarely thought...life itself could actually alter...climate and the landscape," lead author said.

'Dinosaurs were enormous ecosystem engineers,' scientists suggest

A recent study suggested that special eye drops could replace the need for reading glasses or surgery for people with presbyopia. The study conducted among 766 patients found that majority of them could read extra lines on eye test charts after using the drops. The drops contain pilocarpine, a drug that constricts pupils, and diclofenac, a drug that reduces inflammation.

Eye drops could replace glasses or surgery for presbyopia: Study

A study by Monash University and National University of Singapore found that gestational diabetes is linked with a decline in intellectual function among mothers. It added that children born to such mothers are at 45% higher risk for total and partial developmental delays, are 36% more likely to have ADHD and have 56% increased risk for autism spectrum disorder (ASD).

Gestational diabetes linked to ADHD, autism in children: Study

A recent study found that octopuses are "incredible multitaskers" that perform any type of action using any of their eight arms. The study recorded nearly 4,000 individual arm movements of 25 octopuses using underwater cameras and motion-tracking techniques and found that octopuses preferred using their front arms over back ones. The study may open new doors for advancements in robotics.

Octopuses can do any task using any of their 8 arms: Study

University of Delaware chemists have recreated potent molecules from guava plants that may help fight liver cancer. The breakthrough offers a low-cost, scalable method for global scientists, paving the way for affordable treatments. This discovery builds on nature's legacy of lifesaving medicines and could spark worldwide collaboration in cancer research.

Delaware University recreate guava molecules to fight liver cancer

A new AI system can predict keratoconus progression years before current tools. By analyzing tens of thousands of eye scans, it separates high-risk patients needing early treatment from low-risk ones who can avoid unnecessary interventions. This could save vision, reduce corneal transplants, and transform eye care, giving patients independence and peace of mind.

AI can now predict who will go blind, years before doctors can

A study conducted among 4 million people suggested that cannabis users face almost four times the risk of developing type 2 diabetes within five years than people who don't use cannabis. The researchers emphasised the need for more studies on the long-term endocrine effects of cannabis use and whether diabetes risks are limited to inhaled products or other cannabis forms.