There are two types of stem cells.
ALL currently successful stem cell research, such as the story in the OP, is coming from adult stem cells.
The type of stem cell religious folks have a problem with, embryonic stem cells, CAN come from aborted fetuses. They can also come from placental/umbilical tissue. However, embryonic stem cells, to date, have shown almost zero promise.
Don't live for pleasure, make life your treasure...
\m/ Ronnie James Dio, 1942-2010 \m/