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A pair of European satellites have created the first artificial solar eclipse by flying in precise formation, providing scientists with hours of totality on demand.

The European Space Agency released photos of the eclipse at the Paris Air Show on Monday.

Launched late last year, the orbiting pair has been performing simulated solar eclipses since March, while flying tens of thousands of kilometers above Earth.

Flying 150 meters apart, one satellite blocks the sun as the moon does during a natural total solar eclipse, while the other points its telescope toward the corona, the sun's outer atmosphere that forms a crown or halo of light.

Their flight accuracy must be within a millimeter. This precise positioning is achieved autonomously through GPS navigation, star trackers, lasers, and radio links.

Called 'Proba-3', the $210 million mission has generated 10 successful solar eclipses so far during its ongoing control phase./CNA

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