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.
Officials are investigating whether a huge fire that destroyed a top marine science laboratory at the...
The US military said it killed four more people in a boat strike in the eastern...
The highest levels of the federal government are paying attention to a list of people who...
