Researchers at Newcastle University in England report they have coaxed the first human sperm cells from embryonic stem cells, in a remarkable demonstration of how quickly the field of stem cell science is moving.
The achievement, described in the journal Stem Cells and Development, comes just 11 years after the first human embryonic stem cell line was created.
NASA is cutting short a mission at the International Space Station due to a medical issue...
Three more Chinese astronauts, or taikonauts, are now marooned in space following the successful return of...
The Nobel physics prize is awarded by the Royal Swedish Academy of Sciences and includes a...
