The Ulysses Probe

The Ulysses mission, launched in 1990, aimed to study the Sun's polar regions, believed to be the source of solar wind. Using Jupiter's gravity, Ulysses achieved a polar orbit around the Sun, equipped with sensors to measure solar wind and magnetic fields. It provided insights into the Sun's 11-year cycle, revealing the tilt of magnetic poles during peak activity. Understanding solar weather is crucial due to its impact on technology and climate.

What was the primary reason for launching the Ulysses mission?

• To explore the Sun's polar regions

• To analyze Mars' atmosphere

• To study the Earth's orbit

• To investigate the Moon's surface

How did Ulysses achieve a polar orbit around the Sun?

• By using the Moon's gravity

• By launching directly towards the Sun

• By using the gravitational pull of Jupiter

• By orbiting the Earth multiple times

What unique capability did Ulysses have while passing Jupiter?

• It detected water on Jupiter

• It captured images of Jupiter's surface

• It registered cosmic rays from outside the solar system

• It measured the temperature of Jupiter's atmosphere

What is the duration of the Sun's cycle of solar activity?

• 7 years

• 11 years

• 5 years

• 20 years

What surprising discovery did Ulysses make about the Sun's magnetic poles?

• They align with Earth's magnetic poles

• They disappear during solar minimum

• They remain constant throughout the solar cycle

• They tilt to the equator during peak solar activity