NASA scientists are closely studying a new class of celestial objects known as “dark comets”, the little-known celestial objects which have been challenging the human understanding of both comets and asteroids. These comets fall into two main categories: “outer dark comets,” which have eccentric orbits and are larger, and “inner dark comets,” which are smaller and closer to the Sun, …
There are numerous surviving scientific discussions of eclipses written by Christians from across the medieval period. During a lunar eclipse, the Earth passes directly in between the Sun and the Moon and the Moon appears to glow red, reflecting only the light that travels through the Earth’s atmosphere. While it is often assumed that the Middle Ages was a time …
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