By Nadia-Elysse Harris | May 21, 2013 10:06 AM EDT
In a historic trial to test the safeness of human embryonic stem cells, one participant's results stood out among the rest.
By Makini Brice | Nov 23, 2012 09:50 AM EST
For the first time, blind people could read street signs with a device that translates letters into Braille and beams the results directly onto a person’s eye.
