When scientists administered Betaine to aged mice, the results were stunning: improved metabolism, sharper thinking, and enhanced movement. In lab tests on human cells, it reversed signs of aging in ...

This artist's concept illustrates a hierarchical scheme for merging black holes. Credit LIGO/Caltech/MIT/R. Hurt (IPAC) In a breathtaking leap for astrophysics, the LIGO-Virgo-KAGRA (LVK) ...