review: 26-1 viewing the universe

What is the scientific study of the universe called?

• astronomy

• astrology

• geology

• meteorology

Scientists who study the universe are called

• astrologers

• physicists

• astronomers

• geologists

What is NOT an object that astronomers study?

• stars

• black holes

• nebulas

• earthquakes

What is the purpose of studying how stars shine?

• to locate new planets

• to determine the speed of asteroids

• to create new space missions

• to improve energy sources on Earth

Which organization helps fund astronomical research?

• NASA

• CIA

• FBI

• DOGE

What is the nearest part of the universe to Earth?

• the Milky Way

• a galaxy cluster

• the solar system

• a black hole

What is a galaxy?

• A collection of stars, dust, and gas bound by gravity

• A region of empty space

• A collection of planets orbiting a star due to its gravitational pull

• An asteroid belt

What is the name of the galaxy in which our solar system is located?

• Bode's Galaxy

• the Milky Way

• Andromeda

• Large Magellanic Cloud

What is the approximate distance of one astronomical unit (AU)?

• 300,000 miles

• 1 billion km

• 150 million km

• 100 million miles

What is used to measure very large distances in space between stars?

• light-years

• AUs

• miles

• kilometers