What Is An Eclipse

What is an eclipse?

• When one object in space passes through the shadow of another object

• When the Sun rises in the east

• When the Moon is full

• When stars twinkle at night

What gives the Moon its light?

• The Sun

• The stars

• The Earth

• The Moon itself

How often does a lunar eclipse happen?

• At least twice a year

• Every month

• Once every ten years

• Every night

What color can the Moon appear during a total lunar eclipse?

• Red or orange

• Blue or green

• White or yellow

• Purple or pink

Why did people long ago think the Earth was round after seeing a lunar eclipse?

• They saw Earth's shadow on the Moon

• They saw the Sun disappear

• They saw the Moon turn blue

• They saw stars move in the sky

Why does a lunar eclipse last for a few hours?

• Because it takes time for Earth’s shadow to move across the Moon

• Because the Sun sets quickly

• Because the Moon moves very fast

• Because the stars are bright

How often do solar eclipses happen on Earth?

• Every 18 months

• Every month

• Every year

• Every 10 years

What does the Moon block during a solar eclipse?

• The Sun's light

• The Earth's shadow

• The stars

• The clouds

Why does NASA study eclipses?

• To learn more about the Moon and the Sun

• To make the Moon brighter

• To stop eclipses from happening

• To make the Sun cooler

What can NASA study during a lunar eclipse?

• How fast the Moon cools in Earth's shadow

• How fast the Sun moves

• How bright the stars are

• How long the day lasts