India, Aug. 12 -- Spain and parts of mainland Europe will fall dark on Wednesday evening for the first time in 121 years, as a total solar eclipse traces a path from Greenland across the northern Atlantic and over the Iberian peninsula - an event that has filled hotels and turned a string of quiet Castilian villages into makeshift astronomy hubs.

The Spanish mainland has not seen a total eclipse since 1905. Nasa places the path of totality across Greenland, Iceland, northern Russia, the Atlantic Ocean, northern and central Spain, and a small corner of Portugal.

The last total eclipse of the sun anywhere was in April 2024, over North America.

A solar eclipse occurs when the moon passes directly between the Earth and the sun. A total ecl...