Blood rain is a phenomenon in which rain takes on a red color, and was once believed to be actual blood falling from the sky, marking a terrible omen. Literary references to blood rain are scattered throughout history, with the earliest mention in Homer’s Iliad. In the Book of Revelation, seven angels sound trumpets announcing seven apocalyptic events. At the sound of the second trumpet, a flaming mountain crashes into the sea, turning a third of the sea to blood and killing a third of the creatures in it (Revelation 8:8-9). Later, seven angels pour seven bowls, each containing God’s wrath in the form of a different plague, onto the earth, the second and third of which cause the sea and fresh water to turn to blood (Revelation 16:3-4). In recent years, there have been multiple occurrences of blood rain. In one case in Karela, India, the red color of the rain was found to be caused by the presence of spores of red algae which were not native to India but to Europe and were transported between continents by clouds. This marked the first time that a scientific explanation was given to this phenomenon. Littwitz has recreated blood rain using the responsible algae, and has allowed it to dry in seven laboratory evaporating dishes, reminiscent of the angels’ sevel bowls. In this dried specimen, disparate places, epochs, and beliefs are linked together.