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By Alice Lighton of Nature magazine Shortly after the Second World War, the Swedish government conducted a vast social experiment to decide whether to implement educational reform. [More]

This month NASA plans to launch its latest and most sophisticated mission ever to the Red Planet: the Mars Science Laboratory. After a dramatic landing in Gale Crater using a skycrane for the final descent, the nuclear-powered rover will drive around one of the richest deposits of clays and sulfates on the planet--the remains of a water-rich era when rivers carved out valley networks. The size of a small car, the rover (named Curiosity) will spend a Martian year exploring the base of the central peak in the crater, thought to be the oldest section

Biologist Elizabeth Blackburn grew up in Hobart on the Australian island of Tasmania.

categorical decisions. Jurors look at testimony and judge whether a defendant is guilty or not guilty. Police officers take aim at suspects and have to determine whether they see a gun in the suspect’s hand, or something that just resembles a gun.

Olivia tries to decide whether betraying her close friend, Aaron, is worth a potential boost to her personal business. Olivia (Daniela DiIorio) tries to decide whether betraying her close friend, Aaron (Yuri Baranovsky) is worth a potential boost to her personal business.