Mercury & Venus

Front

What is the primary component of Venus's atmosphere?

Back

Carbon dioxide (CO2)

Front

Which planet has a higher average atmospheric temperature, Venus or Mercury?

Back

Venus

Front

What spacecraft mapped the surface of Mercury in high resolution?

Back

MESSENGER spacecraft

Front

Why is it difficult for astronomers to study the surface of Venus?

Back

The surface is permanently obscured by thick clouds.

Front

What was the first space probe sent to Venus to analyze its atmosphere?

Back

Pioneer Venus

Front

What is the surface temperature of Venus compared to Mercury?

Back

Venus has a higher surface temperature than Mercury.

Front

What are the main gases found in the atmosphere of Venus?

Back

Carbon dioxide, nitrogen, and trace amounts of other gases.

Front

What is the significance of the MESSENGER mission?

Back

It provided high-resolution maps of Mercury's surface.

Front

How does the greenhouse effect on Venus compare to that on Earth?

Back

The greenhouse effect on Venus is much stronger, leading to extreme temperatures.

Front

What is the atmospheric pressure on the surface of Venus compared to Earth's?

Back

The atmospheric pressure on Venus is about 92 times that of Earth's.