When killer T cells of our immune system divide, they normally undergo asymmetric cell division (ACD): Each daughter cell ...

Imagine if our bodies could grow new organs throughout our entire lives. Plants do this constantly, thanks to tiny, powerful ...

Many biological processes are regulated by electricity—from nerve impulses to heartbeats to the movement of molecules in and ...

A small tweak to mitochondrial energy production led to big gains in health and longevity. Mice engineered to boost a protein that helps mitochondria work more efficiently lived longer and showed ...

Cells may generate their own electrical signals through microscopic membrane motions. Researchers show that active molecular ...

A growing number of new studies have found that, at least for some cells, death isn’t the end, but the beginning of something wholly unexpected.

Testing in mice suggests that rejuvenating T cells could make vaccines and some cancer therapies more effective.

What keeps our cells the right size? Scientists have long puzzled over this fundamental question, since cells that are too large or too small are linked to many diseases. Until now, the genetic basis ...

This week’s science roundup covers 2025’s near-record heat, a new mpox strain and fresh clues about why hobbits vanished 50,000 years ago. Journalist Karen Hao unpacks the rise of AI “empires,” their ...