WebbStar clusters are large groups of stars held together by self-gravitation.Two main types of star clusters can be distinguished: globular clusters are tight groups of ten thousand to … Webb3 nov. 2014 · Back in 1980, the late Carl Sagan blew minds with the deep thought that those very minds are made from the remnants of blown-up stars. "The cosmos is also …

Solved Earth is made mostly of metals and rocks. Where did - Chegg

Webbstar cluster, either of two general types of stellar assemblages held together by the mutual gravitational attraction of its members, which are physically related through common origin. The two types are open (formerly called galactic) clusters and globular clusters. Open clusters contain from a dozen to many hundreds of stars, usually in an … WebbIt was produced by nuclear fusion in stars Oc. It was created by chemical reactions in interstellar space This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. See Answer Question: Earth is made mostly of metals and rocks. Where did this material come from? Select one: O a. clean earth login

Stars Flashcards Quizlet

WebbWhich of the following statements is probably true about the very first stars in the Universe? They were made only from hydrogen and helium. What is a protostar? A star that is still in the process of forming. Which of the following phenomena is not commonly associated with the star formation process? WebbThe average star spends __ of its lifetime on the main sequence. E. 90%. __ is the thermonuclear fusion of hydrogen to form helium operating in the cores of massive … WebbStars are mostly made of hydrogen and helium, packed so densely in the stars center the pressure is great enough to initiate nuclear fusion reactions FROM THE STUDY SET … clean earth kent wa