Biggest Scientific Breakthroughs Of 2014

This year, humanity landed on its first comet, a child was born to a woman with a transplanted womb, and a fossilized sea shell forced us to reconsider our conceptions of human culture. Those are just a taste of the 20 achievements, innovations, and advances we've selected for our roundup of 2014's biggest… » 12/19/14 12:40pm 12/19/14 12:40pm

Stem Cells Can Be Turned Into Killing Machines That Fight Brain Tumors

Researchers from Harvard Medical School have genetically engineered stem cells to produce and secrete toxins which kill brain tumors, without killing normal cells or themselves. Though the work was performed on mice, researchers call it "the future of cancer treatment." Clinical trials could start within five years. » 10/27/14 8:20am 10/27/14 8:20am

Cloned stem cells are better than re-programmed ones

Stem cells are versatile tools that can potentially be used to treat various disorders, or be directed to grow into much needed organs. The traditional way to obtain embryonic stem cells, the most versatile of them all, has been through fertilizing an egg with a sperm. Unfortunately, this causes some issues for… » 7/10/14 1:36pm 7/10/14 1:36pm

"Surprising" Breakthrough in Multiple Sclerosis Mouse Study

In a recent experiment, mice with MS-like symptoms were able to walk and run again just two weeks after being injected with human neural stem cells. Even the researchers were unprepared for these incredible results. Though we're still far from a cure, it's a remarkable finding that hints at similar therapies for… » 5/15/14 9:00am 5/15/14 9:00am

New research suggests women can make sperm, and men can make eggs

What started as an investigation into developmental mouse biology has become a lot more than that. Biologist Katsuhiko Hayashi discovered a way to turn mouse skin cells into sperm and egg cells — and actually used these modified cells to create a living baby mouse. The question is, can it work in humans? » 8/21/13 4:26pm 8/21/13 4:26pm