Listening to the Sun reveals previously hidden changes to solar cycle
Peer-Reviewed Publication
Updates every hour. Last Updated: 27-May-2026 21:16 ET (28-May-2026 01:16 GMT/UTC)
Tiny sound waves inside the Sun unmask evidence of systematic changes in the solar activity cycle over the last 40 years – with implications for predicting space weather.
Almost 30 years ago, dark energy was proposed as the force responsible for the accelerating expansion of the universe. But for UC Davis mathematicians, the math didn't add up. Their new study challenges the standard cosmological model of the universe.
A largely overlooked space between cells in women’s brains — called the extracellular matrix (ECM), which is highly abundant in the hippocampus — may hold the key to understanding memory loss tied to estrogen decline after menopause, reports a new preclinical Northwestern Medicine study. Scientists have traditionally focused on studying brain cells such as neurons and glial cells and have paid much less attention to the space between the cells. This is the first study to examine estrogen loss in the ECM. The findings provide new insight into how estrogen loss may affect the aging female brain and could help explain why women are at higher risk for AD. These findings suggest a possible new treatment approach focused on restoring the brain’s supportive environment — the ECM — to help protect memory and fight this devastating disease.