An arrowhead-shaped rock on Mars sporting features that may hint at ancient microbial activity on the Red Planet has left scientists puzzled. NASA announced in July of last year that the rock, found in Mars’ Jezero Crater by the agency’s Perseverance rover, held some of the best evidence yet that ancient microbial life may have…
Researchers have unveiled the first real look at a mitochondrial protein strongly linked to Parkinson’s disease, revealing key details in how its malfunction might play a critical role in the disease’s progress. Scientists have known for more than two decades that mutations in the gene for a protein called PTEN-induced putative kinase 1 (PINK1) can…
The newest weight loss medications offer impressive health benefits but come with price tags that make them economically impractical for widespread use, according to a comprehensive new study published in JAMA Health Forum. Researchers at the University of Chicago found that while injectable medications like tirzepatide (Zepbound) and semaglutide (Wegovy) provide substantially greater health benefits…
If Life on Mars Ever Existed, This Bizarre Rock May Tell Us The intriguing chemistry of a rock collected by the Perseverance rover could trace to microbial activity—or not By Alexandra Witze & Nature magazine The black-ringed ‘leopard spots’ on a Martian rock might be evidence of chemical reactions that could have involved microorganisms. NASA’s…
Understanding fluids requires mathematical tools that operate at different scales KARL GAFF / SCIENCE PHOTO LIBRARY Mathematicians have finally succeeded in unifying the laws of physics that govern the motions of particles at different scales. Their efforts resolve a question set by mathematician David Hilbert in 1900 as part of an ambitious programme for all…
If humans could hijack photosynthesis — essentially, plants’ food factory — they could, in theory, capture carbon and produce hydrogen, both potentially helpful in fighting climate change. Absorbing carbon could slow climate change, and manufacturing hydrogen efficiently could create an alternative to CO2-producing fossil fuels. Figuring Out How to Harness Photosynthesis Plants’ natural “factory” is…
A total lunar eclipse was visible across North America overnight Wednesday (March 13 to 14, 2025), including this unique perspective from Pad 39A at NASA’s Kennedy Space Center in Florida. What is it? A SpaceX photographer captured this time-lapse image of the “Blood Moon” above the company’s Dragon spacecraft “Endurance” and Falcon 9 rocket, as…
The uptick in measles cases has left many people wondering about early signs of measles, whether they need an updated vaccine and treatment options. Source link
The common narrative that armed Americans routinely use their firearms to protect themselves and their loved ones from threats has been dealt a significant blow by new research suggesting such scenarios are exceedingly rare. A comprehensive study published March 14 in JAMA Network Open revealed that less than 1% of gun owners reported using their…
CLIMATEWIRE | The Defense Department has a new search-and-destroy mission. It’s on the hunt for climate-related programs and studies. Last week, the Pentagon announced it had canceled multiple studies related to climate — including several that sought to determine whether a hotter planet could lead to more instability in Africa. In addition, the Defense Department…