Why Can’t We Experiment On Human Embryonic Stem Cells? Human embryonic stem cell research is incredibly controversial, and the current law says we can only study them for 14 days. Why is this? Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts The Science of Bees – Can a Bee Sting a Bee? E=mc² Is Wrong? Who Owns The Moon? Can Bacteria Live Off Electricity? Are Humans Still Evolving? Does Water Swirl the Other Way in the Southern Hemisphere?