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Stars often die with a final burst of beauty. For the first time, astronomers have captured visual proof that a star can ...

PhoSim simulates the atmosphere, including air turbulence, as well as distortions from the shape of the telescope’s mirrors and the electrical properties of the sensors. The photons are propagated ...

Using a combination of telescopes, including the International Gemini Observatory, funded in part by the U.S. National ...