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. The mission revealed insights into the Sun's 11-year cycle, showing how solar activity affects Earth's technology and climate. Notably, Ulysses discovered the Sun's magnetic poles tilt during peak activity.

What was the primary reason for sending Ulysses towards Jupiter?

• To study Jupiter's atmosphere

• To use Jupiter's gravity to alter its orbit

• To measure Jupiter's temperature

• To land on Jupiter

What type of sensors were equipped on Ulysses to study the Sun?

• Solar wind and magnetic field sensors

• Radiation sensors

• Temperature sensors

• Pressure sensors

What did Ulysses observe while passing by Jupiter?

• Jupiter's atmosphere

• Cosmic rays from outside the solar system

• Jupiter's moons

• Jupiter's rings

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

• 20 years

• 15 years

• 11 years

• 5 years

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

• They reverse direction every year

• They tilt towards the equator during peak activity

• They disappear during solar minimum

• They remain constant throughout the cycle