The Expanding Universe. The observation obtained from Hubbles space telescope in 1998 revealed that a long time ago, the universe was expanding more slowly than it is today. Most of the universe is thought to be made of dark matter and Energy .

They infer that a mysterious new force, which they call dark energy, is causing the expansion of the universe to accelerate. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Browse.

Start studying Astronomy 14-17. Spell.

dark energy. Gravity. Consists of the matter. Learn vocabulary, terms, and more with flashcards, games, and other study tools. This is called The universe was created about 13.7 million years ago In a single moment, the universe expanded from zero space to its current size Observe the spectrum below.

PLAY. Learn the expanding universe with free interactive flashcards. Velocity of Recession • The speed at which a galaxy is moving away from us. Start studying The Expanding Universe. A type of matter that fills up space and is undetectable at the moment. It would make no sense to find an extremely distant galaxy that was moving toward us, and such an observation would, therefore, cause us to question the very idea of an expanding universe. Doppler Shift • The rate of shift of the wavelength of light received. 13.7 billion years old. The Expanding Universe. We calculate this by observing all spectral wavelengths of that galaxy being redshifted, which then in turn, is proportional to the speed of the galaxy.

dark matter. Log in Sign up. Start a free trial of Quizlet Plus by Thanksgiving | Lock in 50 % off all year Try it free. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Astronomy: The Universe at a Glance features: Beautiful Visuals At a Glance is designed to look like a contemporary magazine or coffee-table book, covering the core content while … Historical Overview In the 1920s, Edwin Hubble, using the newly constructed 100" telescope at Mount Wilson Observatory, detected variable stars in several nebulae.

jill_sukel. • Instructor and student note-taking, highlighting, bookmarking, and search. A type of energy that opposes gravity and causes the expansion of the universe. PLAY. STUDY. Match.

Create. Composition of the Universe. Age of the universe. Log in Sign up. Quizzes #1,2 Jan 12th Quizzes #14,15,16 Feb 19th Quizzes #3,4,5 Jan 19th Quizzes #17,18,19,20 Mar 1st Quizzes #6,7,8 Jan 26th Quizzes #21,22,23,24 Mar 8th Quizzes #9,10 All quizzes must be done by midnight on the dates Ends in 01d 03h 56m 54s. Choose from 233 different sets of the expanding universe flashcards on Quizlet. IN the 1920s astomer Edwin Hubble discovered, that the universe wasn’t static rather it was expanding and finding that revealed the universe was apparently born in a Big Bang . Hubble found that the universe was not static, but rather was expanding! It's not that stars and galaxies are getting Write. • Configurable reading settings, including resizable type and night reading mode. Flashcards. The Expanding Universe This section explains how astronomers think the universe and the solar system formed. Chapter 17. PLAY. the universe appears to be accelerating. Search.

the ability to do work by kinetic energy, heat, and light. States that the universe came into existence 13.7 billion years ago when a singularity rapidly expanded creating time, space, matter, and energy. Test. 8.

When an object is moving, the waves in front of it become compressed and the waves behind it stretch out.

Learn. Astronomers believe that the universe is expanding - that all points in the universe are getting farther apart all the time. The Expanding Universe In fact, the universe is getting even bigger. Created by.

STUDY. STUDY. universe formed when an infinitely dense point suddenly and rapidly expanded in a single moment. Learn vocabulary, terms, and more with flashcards, games, and other study tools. In an expanding universe, extremely distant galaxies must be moving away from us, just as distant raisins in the raisin cake must be moving away.

Start studying Astronomy 101 Chapters 15-17.