A study fails to detect ancient proteins among the microbes, adding to the debate about whether peptides can survive tens of millions of years underground.

At $2 million for a single dose, Novartis’s Zolgensma is the most expensive medicine to date, but still less expensive over a lifetime than another approved drug for the rare genetic disease.

Of the Hemiptera bugs, milkweed-chomping Oncopeltus fasciatus have hung onto more smell and taste receptors than their liquid-guzzling relatives.

A gene helps motor neurons successfully venture out from the spinal cord to muscles during mouse development.

In cell division, a protein called spastin appears to help tear down a bridge between daughter cells.

When hair follicle stem cells lose their protein-based death cue, they take on a new role helping to repair wounds in skin.

CRISPRed heart muscle cells from humans gain the ability to make a protein missing in Duchenne muscular dystrophy.

The former Columbia University professor’s early work helped illuminate the structure of penicillin, allowing chemists to make variants and broaden the scope of antibiotic treatments.

By zooming in on a developing mouse heart, scientists are studying whether defects in vasculature contribute to a thin muscle wall.