Video: 00:04:31 The double-satellite Proba-3 is the most ambitious member yet of ESA's Proba family of experimental missions. Two spacecraft will fly together as one, maintaining precise formation down to a single millimetre. One will block out the fiery disc of the Sun for the other, to enable prolonged observations of the Sun's surrounding atmosphere, or 'corona', the source of the solar wind and space weather. Usually, the corona can only be glimpsed for a few minutes during terrestrial total...
Video: 00:04:31 The double-satellite Proba-3 is the most ambitious member yet of ESA's Proba family of experimental missions. Two spacecraft will fly together as one, maintaining precise formation down to a single millimetre. One will block out the fiery disc of the Sun for the other, to enable prolonged observations of the Sun's surrounding atmosphere, or 'corona', the source of the solar wind and space weather. Usually, the corona can only be glimpsed for a few minutes during terrestrial total...
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