The Great Red Spot: A Storm on Jupiter

Who was the first person to observe the Great Red Spot on Jupiter?

• Galileo Galilei

• Isaac Newton

• Robert Hooke

• Edmond Halley

What is the approximate width of the Great Red Spot compared to Earth?

• 1.3 times the width of Earth

• 3 times the width of Earth

• 2 times the width of Earth

• 0.5 times the width of Earth

How long does it take for the Great Red Spot to complete one rotation?

• Six Earth days

• Twelve Earth days

• Three Earth days

• Nine Earth days

What is one theory about why the Great Red Spot is red?

• High temperature of the storm

• Combination of complex organic compounds, red phosphorus, and sulphur

• Reflection of sunlight

• Presence of iron oxide

What recent change has been observed in the Great Red Spot?

• It is increasing in width

• It is decreasing in width

• It is moving northward

• It is becoming more red