EPIC Observations of Ice in Earth's Atmosphere

What causes the sparkling glints of light captured by Discover in Earth's images?

• Volcanic eruptions

• Artificial lights from cities

• Moonlight reflecting off water bodies

• Sunlight reflecting off tiny ice particles

Which spacecraft first observed sunlight glancing off Earth's atmosphere?

• Hubble

• Cassini

• Galileo

• Voyager

What can studying Discover's observations reveal about Earth's atmosphere?

• The speed of Earth's rotation

• The effect of light reflection on Earth's radiation budget

• The composition of Earth's core

• The depth of Earth's oceans

How might the method used by Discover be applied in the future?

• To measure the distance to the sun

• To identify ice crystals in exoplanet atmospheres

• To map the surface of Mars

• To predict weather patterns on Earth

Why is identifying ice crystals in exoplanet atmospheres important?

• To calculate the exoplanet's gravitational pull

• To evaluate the habitability of the exoplanet

• To measure the exoplanet's magnetic field

• To determine the age of the exoplanet