The cachalot is a giant cetacean seen vary rarely, for they often dive to deep depths. They're also known as sperm whales after their spermaceti, a waxy substance in the whale's head cavity, which is considered valuable.
(ËkÉzmÉªk) adj. 1. (Astronomy) of or relating to the whole universe: cosmic laws. 2. (Astronomy) occurring or originating in outer space, esp as opposed to the vicinity of the earth, the solar system, or the local galaxy: cosmic rays. 3. immeasurably extended in space or time; vast.
Cosmic dust is dust which exists in space. It is for the most part a type of small dust particles which are a few molecules to 0.1 Âµm in size. A smaller fraction of all dust in space consists of larger refractory minerals that condensed as matter left the stars.It is called stardust and is included in a separate section below.t is for the most part a type of small dust particles which are a few molecules to 0.1 Âµm in size. A smaller fraction of all dust in space consists of larger refractory minerals that condensed as matter left the stars.