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This week we cover Type Ia supernovae and a quartet of quasars...
Do Java sparrows click their beaks to their songs?
Unlike other fish, but similar to mammals, the opah is warm-blooded, allowing it to survive at ocean depths.
This week's headlines include Dawn approaching Ceres, possible sea salt on Europa, and a distant young galaxy.
Scientists are tracking whales—with help from the public—to better understand and prevent deadly ship strikes.