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NASA's SPHEREx space telescope launched into orbit by a SpaceX Falcon 9 rocket
NASA's SPHEREx observatory is now in space for a two year year mission to create a 3D map of the entire ... NASA likens it to the "way a prism splits sunlight into a rainbow." ...
BBC3y
3D shapes
A prism is a 3D shape which has a constant cross section - both ends of the solid are the same shape and anywhere you cut parallel to these ends will give you the same shape. For example ...