Galaxies and the Universe

What is a galaxy?

• A large planet

• A group of stars, gas, and dust bound together by gravity

• A type of black hole

• A moon of a planet

Which type of galaxy is characterized by a flattened disk and spiral arms?

• Elliptical galaxy

• Irregular galaxy

• Lenticular galaxy

• Spiral galaxy

What is the name of our galaxy?

• Andromeda

• Triangulum

• Milky Way

• Orion

What is the primary component of dark matter, a mysterious substance that makes up a significant portion of the total mass in the universe?

• Protons

• Neutrons

• Quarks

• Unknown particles not composed of ordinary matter

What is the process by which galaxies collide and merge over cosmic time?

• Galactic annihilation

• Cosmic convergence

• Galactic cannibalism

• Celestial coexistence

Which telescope has recently provided stunning images of distant galaxies and deep space, contributing to our understanding of the universe?

• Hubble Space Telescope

• Chandra X-ray Observatory

• James Webb Space Telescope

• Keck Observatory

Which galaxy is the closest spiral galaxy to the Milky Way and is expected to collide with our galaxy in the distant future?

• Triangulum Galaxy

• Sombrero Galaxy

• Andromeda Galaxy

• Whirlpool Galaxy

What is the primary factor that influences the classification of galaxies into different types (spiral, elliptical, lenticular, irregular)?

• Color

• Size

• Shape

• Temperature

What is the term for a group of galaxies bound together by gravity?

• Constellation

• Solar system

• Galaxy cluster

• Nebula

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