Chemistry
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We summarize the week's scientific breakthroughs every Thursday.
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- 			 Planetary Science Planetary ScienceLife’s cold startPrimordial molecules could have replicated themselves in a slushy place, new experiments suggest. 
- 			 Health & Medicine Health & MedicineDNA-damaging disinfection by-products found in pool waterA study detects subtle changes in swimmers’ cells after 40 minutes of laps. By Janet Raloff
- 			 Chemistry ChemistryCockroach brains, coming to a pharmacy near youInsect tissue extracts show antibacterial activity in lab experiments. 
- 			 Chemistry ChemistryLight-harvesting complexes do it themselvesA new technique could yield solar cells with no repair or assembly required. 
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- 			 Plants PlantsMost energy drinks lag in added health benefitsMany caffeinated tonics lack natural antioxidants and other beneficial compounds found in coffee, yerba maté and other plant-based drinks. 
- 			 Tech TechNew help for greasy works of artNMR technique identifies oil stains, guiding art conservation efforts. 
- 			 Chemistry ChemistryDeep-sea plumes: A rush to judgment?A new report suggests a deep-sea plume of oil in the Gulf of Mexico has been gobbled up by microbes. But the scientist who described the incident doesn't "know" that. He can't — yet. By Janet Raloff
- 			 Chemistry ChemistryHow to bug bugsNew insights on how insect repellents work could eventually help scientists prevent the transmission of diseases like malaria. 
- 			 Chemistry ChemistryTracking bird flu one poop at a timeMice can sniff out duck droppings laced with the virus. 
- 			 Chemistry ChemistryDeep-sea oil plume goes missingControversy arises over whether bacteria have completely gobbled oil up. By Janet Raloff