Joe Palca Joe Palca is a science correspondent for NPR.
Britain's Parliament Backs Stem-Cell Research
Cloning Claim Stirs Skepticism, Ethical Debate
Birth of Human Clone Claimed; Scientists Wary
Group Claims First Human Clone
Stanford to Create Stem Cell Research Center
Study: Vaccine Effective Against Cervical Cancer Virus
Thwarting Terrorism Through 'Information Awareness'
Israeli Show of Force Follows Hebron Attack
Rare Genetic Disorder Tied to Assisted Reproduction