Cosmos in a Nutshell

What is the average distance between the Earth and the Sun known as?

• One light year

• One astronomical unit

• One solar mile

• One cosmic length

How far does light travel in one year?

• 93 million miles

• 9.5 trillion kilometers

• 150 million kilometers

• 186,000 miles per second

Approximately how long can it take for radio signals to reach a spacecraft near Mars?

• 20 minutes

• 5 minutes

• 1 hour

• 10 minutes

What percentage of the solar system's mass is accounted for by the Sun?

• 50.1%

• 75.3%

• 99.8%

• 89.2%

What is required for a celestial body to be classified as a planet?

• It must be able to host life.

• It must be visible from Earth with the naked eye.

• It must be massive enough to have its own gravity to shape it into a sphere.

• It must be in the Kuiper Belt.

Which planet was discovered in 1930?

• Mars

• Jupiter

• Neptune

• Pluto

What are dwarf planets?

• Stars that do not emit light

• Small moons orbiting planets

• Celestial bodies similar to Pluto that do not clear their orbital zone

• Comets within our solar system

What is a satellite in astronomical terms?

• A machine sent from Earth to explore space

• A natural or artificial body that orbits a larger object

• A type of meteor that enters Earth's atmosphere

• A telescope orbiting Earth

Where do most asteroids in our solar system orbit?

• Between Earth and Mars

• Between Venus and Earth

• Between Mars and Jupiter

• Outside the Kuiper Belt

What is the largest asteroid located between Mars and Jupiter?

• Pluto

• Eros

• Ceres

• Haumea