Maybe the first life on Earth was part of an 'RNA world.' Artur Plawgo/Science Photo Library via Getty Images How life on Earth started has puzzled scientists for a long time. And it still does.

UCSF scientists have developed a “molecular GPS” to guide immune cells into the brain and kill tumors without harming healthy tissue. It is the first living cell therapy that can navigate through the ...

Few questions have captivated humankind more than the origin of life on Earth. How did the first living cells come to exist? How did these early protocells develop the structural membranes necessary ...

The flu illness is triggered by influenza viruses, which enter the body through droplets and then infect cells. Researchers ...

Researchers pump a cell full of Green Fluorescent Protein, then pump that full of energy, producing the first living cell that's also a laser.

A tiny elephant establishes a new stomping ground for 3-D printing: inside cells. For the first time, scientists have 3-D printed objects within living cells, including a 10-micrometer long elephant ...

Oil-in-water droplets respond to chemical cues by forming arm-like extensions that resemble filopodia, which are used by living cells to sense and explore their environment.