Imagine smoke rings seen edge-on and you may gain some insight to what's going on with the deceptive Red Rectangle, which isn't a rectangle at all. The optical illusion is the work of a pair of stars ...
Concept design for a rectangular space telescope, modeled after the Diffractive Interfero Coronagraph Exoplanet Resolver (DICER), a notional infrared space observatory, and the James Webb Space ...
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