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radiation sign

WRITING ON THE WALL A new type of radiation detection could make it much harder to keep radioactive material under wraps.  

painting of Caesar’s last moments

OUT OF BREATH  Caesar’s last moments have inspired much scientific thinking, as well as a new book.

illustration of pills

BEYOND TODAY'S OPIOIDS  The need for new medicines that soothe pain without risking addiction or overdose death is urgent. Safer opioids and alternative painkillers are getting closer to human studies.

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