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That Starry Night Sky? It’s Full of Eclipses [1]
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Date: 2024-04
Eclipses are such a handy way to capture information about distant worlds that scientists have learned how to create their own. Instead of waiting for eclipses to occur in nature, they can engineer them right inside their telescopes. Instruments called coronagraphs, first used on Earth to study the Sun’s outer atmosphere (the corona), are now carried aboard several space telescopes. And when NASA’s next flagship space telescope, the Nancy Grace Roman Space Telescope, launches by May 2027, it will demonstrate new coronagraph technologies that have never been flown in space before. Coronagraphs use a system of masks and filters to block the light from a central star, revealing the far fainter light of planets in orbit around it.
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[1] Url:
https://science.nasa.gov/universe/exoplanets/that-starry-night-sky-its-full-of-eclipses/
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