Could aging eggs be 'rejuvenated'? New tool may help pave the way to fertility-extending treatments
Scientists invented a new experimental system to study how age-related changes in egg cells make them more prone to chromosomal errors.
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Scientists invented a new experimental system to study how age-related changes in egg cells make them more prone to chromosomal errors.
Physicists have transformed a decades-old technique for simplifying quantum equations into a reusable, user-friendly "conversion table" that works on a laptop and returns results within hours.
For decades, helium has been produced with natural gas, generating huge carbon emissions. Now, geologists are looking for new helium sources — and finding enormous "carbon-free" reservoirs that could ...
A massive new sunspot complex, dubbed AR 4294-4296, has emerged on the sun and is facing directly at Earth. The dark patch is on par with the infamous sunspot that birthed the 1859 Carrington Event — ...
The CDC's vaccine committee has voted to roll back a universal recommendation that newborns be vaccinated against hepatitis B, which is one of public health's major success stories.
Dec. 5, 2025: Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the weekend.
In December 1954, Gertrude Elion and colleagues described a new compound they had developed that sent children with leukemia into remission. It would guide a new approach to "rational drug design."
How would history have unfolded if Antony and Cleopatra had defeated Octavian? Would they have ruled the Roman Empire?
An excavation in a small French village reveals three jars with thousands of Roman coins.
Archaeologists discovered an unusually flat-topped skull at a pre-Hispanic Mesoamerican site.
NASA and ESA both shared new images of the interstellar comet 3I/ATLAS this week, as the agencies gear up for the mysterious object's closest approach to Earth on Dec. 19.
A large study of brain scans shows that our neural wiring evolves through five major stages from birth to late old age. These phases are separated by sudden turning points that mark big shifts in how ...
A high-speed “zap-and-freeze” method is giving scientists their clearest view yet of how brain cells send messages. By freezing tissue at the instant a signal fires, researchers revealed how synaptic ...
Younger women are being diagnosed with breast cancer more often than screening guidelines anticipate. Many of these cancers are invasive and harder to treat, especially in those under 40. After analyz...
As the last Ice Age waned and the Holocene dawned, deep-ocean circulation around Antarctica underwent dramatic shifts that helped release long-stored carbon back into the atmosphere. Deep-sea sediment...
Scientists found that adult bristleworm eyes grow continuously thanks to a rim of neural stem cells similar to those in vertebrate eyes. This growth is surprisingly regulated by environmental light vi...
Nitrous oxide may offer quick, short-term relief for people with major depression, especially those who haven’t responded to standard medications. The meta-analysis found rapid improvements after a si...
Researchers discovered that 168 common chemicals can disrupt the growth of beneficial gut bacteria, with some also promoting antibiotic resistance. Many of these substances—found in food, water, and h...
Scientists discovered that the first 100 base pairs of human genes are unusually prone to mutations, especially during the earliest stages of embryonic development. These mosaic mutations often go und...
Archaeologists excavating the ancient Roman city of Gabii have uncovered a massive stone-lined basin that may represent one of Rome’s earliest monumental civic structures. Its central placement hints ...