Scientists reversed biological age in older adults in just 4 weeks - Science Daily

Coral bleaching restoration at Stanford – by Dan Griffin / GG Films (via SWNS, cropped) Coral bleaching has been reversed at record speed using a new method developed at Stanford University.

Few of us would turn down a nice cuppa. But over the years, daily decisions between tea or coffee could make a big difference to women's bone health, a recent study suggests. Osteoporosis is a common concern for women over 50 years of age. One in three will be diagnosed with the disease, which occurs when the body fails to replace old bone as it is broken down. This causes bones to become brittle and weak, making them more prone to fractures and harder to heal. Older women are at particular risk of osteoporosis as levels of estrogen, a hormone that supports bone metabolism, drop after menopause. Surgeries to remove a person's ovaries have a similar effect. Public health researchers from Flinders University in Australia analyzed the tea- and coffee-drinking habits of roughly 9,700 US women aged over 65 years, as part of a broader osteoporosis study published in 2025. Participants self-reported their tendencies in surveys conducted on four occasions in a roughly 10-year period.

Lawrence Livermore National Laboratory researcher Isaiah Santistevan led the development of three-dimensional simulations exploring how a nuclear device could deflect or disrupt an asteroid threatening Earth. Credit: Blaise Douros/LLNL Lawrence Livermore National Laboratory (LLNL) researchers are developing three-dimensional simulations to examine how a nuclear device could be used to deflect or potentially disrupt an asteroid threatening Earth.

Milky Way’s first microblazar candidate sits 12,000 light-years away, offering a rare ground-level lab for studying relativistic jetsA black hole 12,000 light-years away is firing a jet of plasma almost directly toward Earth. At that distance, no known or expected danger to Earth has been identified by the researchers or the institutions involved. What astronomers have actually found is rarer and more interesting than a threat. Researchers have identified IRAS 18293-0941 as a compelling candidate for the Milky Way’s first microblazar, a class of object that gives astrophysicists a close-up laboratory for studying some of the most violent physics in the galaxy. What Astronomers FoundThe discovery centers on a binary system whose black hole expels plasma jets at close to three-quarters the speed of light, pointed almost directly toward Earth. The system pairs a hot, massive star with a black hole that completes a full orbit roughly every 11.38 days. Material drawn from the companion star feeds the black hole, and some of that matter gets expelled outward as opposing jets traveling at approximately three-quarters the speed of light. Terminology matters here.