1 What is the name of the galaxy cluster that the Milky Way belongs to?A) the Spiral Group B) the Virgo Group C) the Local Group D) the Super Group 2 Where are the oldest stars in the Milky Way galaxy located?A) black holes B) halo and central bulge C) spiral arms D) central bulge only 3 What do astronomers use to map the shape of the Milky Way?A) visible light B) infrared rays C) radio waves D) gamma rays 4 How many stars are in the disk of the Milky Way?A) the same number that you can see with your eyes on a clear night B) 1 million C) 100,000 D) 100 billion 5 The redshift of quasars measures __________.A) their shape B) their age of formation C) their intensity D) their distance from Earth 6 Galaxies that are extremely bright are called __________.A) active galactic nuclei B) superclusters C) radio galaxies D) spiral galaxies 7 What was the first galaxy to be discovered outside of the Milky Way galaxy?A) the Andromeda Galaxy B) the Virgo C) the Sagittarius Galaxy D) the Local Group 8 Which galaxy shape is not a part of Hubble's classification system?A) spiral B) elliptical C) spherical D) irregular 9 The smallest galaxies are called __________ and the largest are called __________.A) dwarf ellipticals, giant ellipticals B) dwarf spirals, giant ellipticals C) dwarf ellipticals, giant spirals D) irregular, ellipticals 10 In which list are celestial features correctly shown in order of increasing size?A) galaxy, solar system, universe, planet B) solar system, galaxy, planet, universe C) planet, solar system, galaxy, universe D) universe, galaxy, solar system, planet 11 What was in this part of the Milky Way prior to 4.6 billion years ago?A) nothing B) other planets C) a cloud of dust and gas D) a supernova star 12 The Milky Way contains a large central bulge made up mostly of ______ .A) young stars B) old red stars C) remnants of supernovas D) dust and gas 13 About how long does it take the solar system to make one revolution around the Milky Way?A) 24,000 years B) 240,000 years C) 24 million years D) 240 Million years 14 The light from most distant galaxies is _______ .A) shifted toward the red end of the spectrum B) shifted toward the blue end of the spectrum C) always ultraviolet D) always infrared 15 Evidence indicates that the expansion of the universe is ________.A) slowing down B) settling into a constant rate C) acceleration D) reversing 16 Which scientist was the first to find evidence that the universe is expanding?A) Galileo Galilei B) Albert Einstein C) Edwin Hubble D) Stephen Hawking 17 Which shift in the electromagnetic spectrum received from distant galaxies suggests that the universe is expanding?A) blue-shift B) red-shift C) green-shift D) violet-shift