Although Italian by birth, maritime explorer Christopher Columbus sailed across the Atlantic Ocean and discovered the Americas under the Spanish emperorâs name. During his first voyage, he led three Spanish galleons, the NiÃ±a, Pinta, and the Santa Maria.
Instead of the general notion that a void is a region of space with a low cosmic mean density; a hole in the distribution of galaxies, it defines voids to be regions in which matter is escaping; which corresponds to the Dark Energy equation of state, w.
Dark matter is the term astronomers use to describe material in the universe that does not emit or reflect light and is, therefore, invisible.Stars, nebulae, and galaxies are examples of luminous objects in the sky.ark matter is the term astronomers use to describe material in the universe that does not emit or reflect light and is, therefore, invisible.