Topics for National Geographic: Science and Space By: 1. Is the Origin of Life just a chemical anomaly? Or is there a life force? 2. Are Humans Still Physically Evolving? 3. Do Adult stem cells work? 4. How Close are we to Preventing Old Age? 5. The CTC blood test for cancer mutation diagnosis: why can't we access it? 6. The Sublime Slowness of Solar: the looming possibility of solar flight. EFTA01140167