For more than a millennium, Orthodox Christian monks have woken up in the predawn darkness to start their day with prayer at the Panagia Hozoviotissa Monastery, built high into a cliffside on the island of Amorgos.
The tall, whitewashed complex is a speck about half-way up the precipitous mountain that plunges into the Aegean Sea. Except for a few small chapels scattered among the rocks, no other structure is in sight — and no light pollution to dim the swirl of stars as it increasingly does around the world.
