ESO

Arkenor on May 2nd, 2008

Cerro Paranal, home of ESO’s Very Large Telescope, is certainly one of the best astronomical sites on the planet. Stunning images, obtained by ESO staff at Paranal, of the green and blue flashes, as well as of the so-called ‘Gegenschein’, are real cases in point. The Earth’s atmosphere is a gigantic prism that disperses sunlight. [...]

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