The woman who stared at the sun | Alex Gendler

Hisako Koyama, an amateur astronomer, began observing the sun during WWII blackouts, sketching sunspots and contributing significantly to solar science. Her work, despite no formal training, was highly accurate and recognized by the Oriental Astronomical Association. Koyama's records, spanning over 40 years, helped track solar cycles and sunspot movements, providing insights into solar phenomena like flares that affect Earth's technology. Her legacy extends beyond her lifetime, illustrating the importance of meticulous observation in science.

What inspired Hisako Koyama to start observing the sun?

• Her interest in solar eclipses

• A letter from the Oriental Astronomical Association

• The strategic blackouts during World War II

• Her formal training in astronomy

What process in the sun leads to the formation of sunspots?

• Chemical reactions

• Gravitational collapse

• Nuclear fusion

• Nuclear fission

How do sunspots appear on the sun's surface?

• As invisible areas

• As bright spots

• As dark spots

• As colorful patterns

What was a significant outcome of Koyama's sunspot observations?

• Discovery of a new planet

• Mapping the moon's surface

• Understanding the sun's 11-year cycle

• Invention of a new telescope

How did Koyama's work help in predicting solar flares?

• By measuring the sun's temperature

• By identifying new constellations

• By tracking sunspot movements

• By observing lunar phases