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In 1944, while Tokyo was under Allied aerial attack, sirens warned citizens to remain indoors as the government blacked out the city. Hisako Koyama, a Tokyo resident then aged 28, used these perilous, dark moments as an opportunity to pursue her passion for astronomical observation. But as this evocatively animated video from TED-Ed explores, it was her meticulous and innovative daylight sketches of the Sun that would ultimately capture the attention of the astronomy world. Melding Koyama’s inspiring biography with the science of sunspots and solar flares, the short is at once a glimpse into the Sun’s somewhat hidden cycles and a celebration of the contributions of citizen scientists.
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Biology
Starlings swoosh like brushstrokes across the sky in this dazzling short
3 minutes
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Engineering
From simple motors to levitating trains – how design shapes innovation
23 minutes
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Ecology and environmental sciences
The tree frog die-off that sparked a global mystery – and revealed a dark truth
15 minutes
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Film and visual culture
Our world has very different contours when a millimetre is blown up to a full screen
8 minutes
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Astronomy
The remarkable innovations inspired by our need to know the night sky
5 minutes
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Knowledge
Why it takes more than a lifetime to truly understand a single meadow
11 minutes
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Physics
Groundbreaking visualisations show how the world of the nucleus gives rise to our own
10 minutes
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Earth science and climate
There’s a ‘climate bomb’ ticking beneath the Arctic ice. How can we prepare?
8 minutes
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Physics
To change the way you see the Moon, view it from the Sun’s perspective
5 minutes