1 (geometry) A polyhedron with parallel ends of the same size and shape, the other faces being parallelogram-shaped sides.  A transparent block in the shape of a prism (typically with triangular ends), used to split or reflect light.
To the Jews, solar eclipses meant that the moon was passing between the sun and the earth, thereby blocking the suns light. Notwithstanding the physical explanation of a solar eclipse, there is also spiritual significance to it: At the time when the sun is eclipsed, it is an unfavorable period for the world. A parable: This can be compared to a human king who made a feast for his subjects, and placed a lantern before them.
New Moon tonight!! The Sun and Moon will conjoin tonight in Aries at around midnight EST, making this a New Moon. Aries is the sign of initiation and courage, and as first sign of the zodiac it rules over fresh starts and new beginnings. The New Moon is the beginning of a new solar cycle, so the New Moon in Aries has a particularly strong energy for moving forward into new ventures with energy and enthusiasm.