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Critics of needle exchange programs often express concerns about syringe litter. Spencer Platt/Getty Images

Syringe litter did not increase after a needle exchange ban was overturned in Pueblo, Colorado, but health services suffered

Evidence suggests that people who receive syringes from a needle exchange are less likely to dispose of them improperly.
Theatergoers arrive for ‘Leopoldstadt,’ a play about several generations of a Jewish family in Vienna, at Wyndham’s Theatre in London in 2020. Isabel Infantes/AFP via Getty Images

Many Americans are moving away from congregations, but not necessarily from religion – movies, plays, art and social media fill the gap

To understand what religion looks like in 21st-century America, researchers may need to ask different questions.
Making a pitcher of iced tea can be a physics experiment. invizbk/iStock via Getty Images Plus

How do ice cubes cool a drink?

Energy transfer is the secret ingredient that makes iced tea a particularly refreshing drink on a hot day.
Emile Bernard’s ‘Madeleine in the Bois d'Amour’ (1888). Art Media/The Print Collector via Getty Images

The importance of teaching students what AI can’t do

Educators can confront AI head on by distinguishing its pattern-recognition skills from its inability to daydream, embody other people and authentically express itself.
Cambridge professor Jason Arday was found dead at his home in London on Aug. 14, 2026, days after he resigned from his position amid accusations of plagiarism, which he had denied. Nordin Catic/Getty Images

Jason Arday and the new politics of plagiarism

The resignation and death of the Cambridge professor is the latest chapter in a centuries-old struggle over originality and intellectual ownership – one intensified by the rise of generative AI.