A program reviewing decades-old evidence reaches a milestone of helping Baltimore County authorities close cases.

Add Yahoo as a preferred source to see more of our stories on Google. A single self‑amplifying RNA injection that boosts a heart‑healing peptide cut scarring and improved function after heart attacks ...

Researchers uncovered millions of ancient plant DNA switches—some older than flowering plants themselves—revealing a hidden evolutionary blueprint stretching back 400 million years. Most people have ...

Scientists have discovered that a rare “mirror-image” version of the amino acid cysteine can dramatically slow the growth of ...

How does a tiny cluster of cells become an embryo with a head, trunk, and tail? And how do thousands of genes coordinate this development? A new imaging method makes it possible to visualize the ...

Microplastics might clog up immune cells, preventing them from fighting infections and clearing away dead cells, as well as reducing sperm counts.