NASA’s Solar Dynamics Observatory, which watches the sun constantly, captured images of the events. Solar flares are powerful bursts of radiation. Harmful radiation from a…

  The Big Dipper is an asterism consisting of the seven brightest stars in the constellation Ursa Major. Here, American Museum of Natural History shows…

After several attempts, NASA has completed its experiment of creating artificial clouds by pushing out containers with steam from a rising rocket. Yesterday's attempt was…

This ESA video reveals the evolution of stars in our Galaxy over the past million of years. It starts from the positions of stars in…

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