University of Cambridge scientists have used human stem cells to create three-dimensional embryo-like structures that replicate certain aspects of very early human development—including the production ...

Bangkok — Scientists have developed human embryo-like structures without using sperm, an egg or fertilization, offering hope for research on miscarriage and birth defects but also raising fresh ...

Recurring questions, seeing and believing -- Hypothetical and observed embryos with microscopes at work -- Experimental embryos in the laboratory -- Inherited, evolved, and computed embryos -- The ...

Scientists are exploring ways to mimic the origins of human life without two fundamental components: sperm and egg. They are coaxing clusters of stem cells – programmable cells that can transform into ...

University of Cambridge scientists have used human stem cells to create three-dimensional embryo-like structures that replicate certain aspects of very early human development - including the ...

Four teams have coaxed human stem cells to organize themselves into embryo-like forms. The advance could shed light on fertility. By Carl Zimmer In its first week, a fertilized human egg develops into ...

Researchers have captured the most-detailed images yet of human embryos developing in real time, using two common laboratory tools — fluorescent dyes and laser microscopes. The technique, described in ...

Katsuhiko Hayashi, a developmental geneticist at Osaka University, is working on ways to make what he calls "artificial" eggs and sperm from any cell in the human body. (Kosuke Okahara for NPR) ...

On a cloudy day on a gritty side street near the shore of San Francisco Bay, a young man answers the door at a low concrete building. "I'm Matt Krisiloff. Nice to meet you," says one of the founders ...