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Here’s why 2 spacecraft aim to produce ‘solar eclipses on demand’


The Proba-3 mission, set to launch from India, aims to create artificial solar eclipses in order to study the sun’s elusive outermost layer, the corona. The spacecraft will fly in a precise formation, with one satellite blocking the sun’s face from the other to create an eclipse effect. This will allow for sustained views of the corona and unprecedented data collection. The mission is expected to last two years, with the spacecraft positioned 60,000 kilometers above Earth while flying 150 kilometers apart. The European Space Agency hopes to unravel the mysteries of the corona, such as its extreme temperature compared to the sun’s surface and its role in driving space weather impacting Earth. This is the latest in a series of Proba missions by the ESA, following Proba-1 for Earth observation, Proba-2 for sun observation, and Proba-V for vegetation monitoring. The launch can be watched on ESA Web TV and ISRO’s YouTube channel. The mission represents a unique opportunity for scientists to study the sun’s corona and improve our understanding of the solar system.

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www.usatoday.com

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