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.
Right after that moment of birth, the whole universe was ringing like a bell, and just as a bellâs tone reflects its size and shape, so the pattern of cosmic ringing reveals exactly what material was present in the early universe. The humbling answer: 15 percent of the matter was and still is visible, 85 percent dark.