Here are some of the most interesting science news stories I read this week:
Humans can distinguish at least 1 trillion different odors
Pseudogap theory puts physicists closer to high temperature superconductors
Potential lung cancer vaccine shows renewed promise
Space sunflower may help snap pictures of planets
New drug raises potential for cancer treatment revolution
New drugs may transform Down Syndrome
Engineers design "living materials"
Could diamonds be a computer's best friend?
Famous paintings help study the Earth's past atmosphere