Divining rod for Jupiter

摘要

Jupiter is, quite literally, the biggest mystery in the solar system. But that will hopefully change after the launch of NASA's Juno mission on 5 August. A decade or so ago, NASA's Galileo mission revealed curious inconsistencies in the planefs atmosphere. Models of the solar system suggest Jupiter formed near its current location, just outside the solar system's "frost line", a boundary beyond which water vapour condenses. Yet when Galileo launched a probe into the planefs atmosphere in 1995, the probe found surprisingly little water.