Aurora Borealis and Its Mysteries

What have people in the Arctic reported hearing for centuries?

• The sound of ocean waves

• The sound of wind

• The sound of auroras

• The sound of thunder

How many nights per year can the northern lights be seen at Sodankylä?

• 50 nights

• 100 nights

• 150 nights

• 200 nights

What did early scientists lack in understanding the northern lights?

• Access to satellites

• Understanding of solar activity

• Knowledge of the ocean currents

• Knowledge of the Earth's atmosphere

What are the two main sources of strong auroras?

• Lunar eclipses and meteor showers

• Meteor showers and solar flares

• Solar flares and lunar eclipses

• Solar storms and coronal holes

What phenomenon is responsible for the aurora borealis?

• Meteor showers

• Solar wind particles interacting with Earth's atmosphere

• Lunar eclipses

• Volcanic eruptions

What protects Earth from solar wind particles?

• The atmosphere

• The ocean currents

• The Earth's magnetic field

• The ozone layer

What did the Sámi people believe about the northern lights?

• They could steal children

• They were a sign of good luck

• They were a natural disaster

• They were a message from the gods

What is the main focus of Unto Laine's theory about auroral sounds?

• The sounds are caused by ocean waves

• The sounds are caused by electrical charges in the inversion layer

• The sounds are a result of human activity

• The sounds are a myth

What is the Carrington Event known for?

• Causing volcanic eruptions

• Being the largest meteor shower

• Causing the northern lights to be visible at the equator

• Being the first recorded lunar eclipse

What could happen if Earth were hit by a superstorm today?

• It would lead to a new ice age

• It would cause a global flood

• It would disrupt modern technology

• It would cause volcanic eruptions