WebbStars also die. Older stars are called red giants and supergiants, and are closer to dying. IV. Galaxy Classification. The term galaxy refers to a large collection of stars, dust, and gas clouds which are held together by gravitational attraction. Hubble, a well known astronomer classified galaxies into 3 major groups. Webbstar hydrogen helium energy visible light Question 6 30 seconds Q. CLOZE 1: Stars are held together by the force of _____. answer choices gravity size energy scatter graph brightness Question 7 30 seconds Q. CLOZE 1: _____ and composition determine answer choices gravity size energy scatter graph brightness Question 8 30 seconds Q.
Earth Science - Stars and Beyond
Webb16 maj 2024 · Protons are held together by the strong force, just as stars are held together by gravity. But the tiny protons are a different beast. So “it’s natural, but it’s not completely trivial” that... Webb4 jan. 2024 · Galaxies are composed of stars, dust and dark matter, all held together by gravity. Astronomers aren't certain exactly how galaxies formed. After the Big Bang, space was made up almost... profit hacking arnaque
Hubble Reveals a ‘Rediscovered’ Star Cluster NASA
Webb4 jan. 2024 · Galaxies don't float through space in isolation but are bunched together in groups known as clusters. Some clusters are large, containing over a thousand galaxies while others are much smaller. Webb29 mars 2024 · • A star is a giant ball of very hot gas. That gas is called plasma. Stars are held together by gravity. They give out heat and light because they are so hot. • Stars are hot because of nuclear reactions happening inside them. Those reactions are called nuclear fusion. Nuclear fusion makes light and heat and makes bigger and bigger … Webb28 feb. 2024 · 3 Answers Sorted by: 46 The galaxy is kept together by the combined mass of the matter in the galaxy, of which the supermassive black hole is a negligible part. … remote control wall lamps