NASA | Top Solar Discoveries: #4

The video discusses the work of German astronomer Samuel Heinrich Schwab, who, like Galileo, was intrigued by sunspots. Over 17 years, Schwab observed a periodic cycle in the number of sunspots, discovering an 11-year solar cycle. This cycle is crucial for understanding space weather's impact on Earth, as it influences the frequency and intensity of solar storms.

Which astronomer was inspired by Galileo and focused on sunspots?

• Samuel Heinrich Schwab

• Johannes Kepler

• Isaac Newton

• Edmond Halley

What did Schwab discover about sunspots in the mid-1800s?

• They are random and unpredictable

• They follow a periodic cycle

• They are caused by lunar phases

• They occur only during solar eclipses

How long is the solar cycle that affects sunspot visibility?

• 20 years

• 30 years

• 11 years

• 5 years

Why is understanding the solar cycle crucial for Earth?

• It dictates the frequency and strength of solar storms

• It affects ocean tides

• It helps predict lunar eclipses

• It determines the Earth's climate

What is the relationship between the solar cycle and space weather?

• The solar cycle has no impact on space weather

• Space weather is independent of the solar cycle

• The solar cycle only affects space weather during solar eclipses

• The solar cycle influences the occurrence and intensity of space weather events