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    • Challenge 8 – Exploring Angular Diameter

      NASA· 17 hours ago

      Angular size is a property of observing an object with a fixed diameter at different distances. In astronomy, all of the objects you see in the sky can only be compared by ...

    • Nancy Grace Roman Space Telescope

      Nancy Grace Roman Space Telescope

      NASA· 9 hours ago

      The Nancy Grace Roman Space Telescope’s Wide Field Instrument’s observing program will include both Core Community Surveys, defined by a community-led...