The largest crater on Phobos is so big that the impact nearly shattered the tiny Martian moon. Its name honors the woman who kept her husband searching for Mars's moons, and a Japanese probe launched on October 20, 2026 is now on its way to land beside it.
Researchers profiled thousands of blood proteins across the menopause transition and found 16 molecules tied to brain aging and dementia risk that tracked menopause stage more closely than age. Here is what the Nature Medicine study shows, and what it does not.
In aged rats, a two-week treatment with the experimental drug cinaciguat reopened the tiny pores of liver filter cells and brought blood levels of amyloid beta and LDL cholesterol back to youthful levels. Here is what the study shows, and what it does not.
As we age, muscles shift toward slow-twitch fibres even as their mitochondria falter. A Copenhagen-led study in mice suggests this is a defence, not just a failure.
A tiny group of brainstem neurons helps keep blood pressure stable from moment to moment. Losing them destabilises it, even when the average reading looks normal.
NASA's Astronomy Picture of the Day for 26 October 2026 shows M42, the Great Nebula in Orion. Here are the facts about this stellar nursery that are worth knowing, from how to spot it without a telescope to why its distance and size depend on who you ask.
Astronomers using the James Webb Space Telescope have found evidence for three actively feeding supermassive black holes in a single galaxy seen about 1.2 billion years after the Big Bang. Two sit close together at the center, and may merge within a few hundred million years.
For years, large trials found that low-dose aspirin does not prevent dementia in older adults overall. A new analysis of the ASPREE trial suggests the average may be hiding a subgroup defined by genes linked to platelet count - but the same group also bled more.
NASA's Astronomy Picture of the Day for October 22, 2026 shows the first known green star: a white dwarf whose sodium-rich atmosphere would give it a chartreuse glow up close.