1. FENG ZHANG: DNA’s master editor Borrowing from bacteria, a biologist helps to create a powerful tool for customizing DNA. ------- 2. TANIA SIMONCELLI: Gen

1. FENG ZHANG: DNA’s master editor Borrowing from bacteria, a biologist helps to create a powerful tool for customizing DNA. ------- 2. TANIA SIMONCELLI: Gene patent foe A US science-policy expert fought to keep genes open to all. -------- 3. DEBORAH PERSAUD: Viral victor A virologist provides the strongest evidence yet that infants born with HIV can be cured. -------- 4. MICHEL MAYOR: In search of sister Earths An astronomer with a flair for technology extends his legacy of discovery. -------- 5. NADEREV SAÑO: Climate conscience After Typhoon Haiyan ravaged the Philippines, a diplomat focused the world’s attention — briefly — on global warming. -------- 6. VIKTOR GROKHOVSKY: Meteorite hunter A Russian researcher tracked the debris from the biggest object to hit our planet in a century. -------- 7. HUALAN CHEN: Front-line flu sleuth A virologist helped China to quell an outbreak of H7N9 avian flu in humans. -------- 8. SHOUKHRAT MITALIPOV: The cloning chief After years of frustration, a biologist has finally developed a line of stem cells from a cloned human embryo. -------- 9. KATHRYN CLANCY: An eye on harassment An anthropologist unearths disturbing trends in sexual assaults at field sites — and suspects she’s just scratching the surface. -------- 10. HENRY SNAITH: Sun worshipper An energetic physicist pushes a promising solar-cell material into the spotlight.