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Researchers have developed a new coronagraph—an optical device that blocks out light from a bright source—that could make it ...

NASA’s PUNCH mission just took a big step forward with the first images from its solar-observing instruments, revealing the outer atmosphere of the Sun like never before. As the four-satellite ...

Is it possible to build a Dyson sphere that isn't catastrophically unstable? New research says yes, but only in one type of ...