The Crater on Mercury That Defied Conventional Models: MESSENGER Images part 2

The video explores Mercury's volcanic past, highlighting its extreme temperatures and geological changes. It discusses how craters and valleys provide evidence of past lava flows and volcanic activity. The video also explains the formation of volcanic ash and the impact of meteors on Mercury's surface. Despite its violent past, Mercury is now geologically quiet, with no active volcanoes.

What is the maximum daytime temperature on Mercury?

• 500°C

• 600°C

• 430°C

• 300°C

What is the viscosity of magma compared to water?

• The same as water

• 10,000 to 100,000 times more viscous

• 1,000 times more viscous

• 100 times more viscous

What is the significance of the smooth plains inside craters like Raditladi?

• They are caused by meteor impacts

• They are filled with lava

• They are formed by water erosion

• They indicate a lack of volcanic activity

What color is associated with volcanic activity on Mercury?

• Green

• Blue

• Red

• Orange

What did the MESSENGER spacecraft find covering the surface of Mercury?

• Sand dunes

• Meteor fragments

• Volcanic ash

• Water ice

How was the crater Navoy formed?

• By a meteor impact

• By a volcanic eruption

• By water erosion

• By tectonic activity

What is the current state of volcanic activity on Mercury?

• Slightly active

• Inactive

• Moderately active

• Highly active