Name: Smile! Tomorrow is the Northern Hemisphere’s summer solstice! 😎☀️ This “sunny smile” is made of co
Uploaded: 2026-06-20T16:00:00+00:00
Description: Smile! Tomorrow is the Northern Hemisphere’s summer solstice! 😎☀️ This “sunny smile” is made of coronal holes — darker, cooler regions on the Sun where solar material escapes to space at incredible speeds. 🕳️ More on coronal holes in this episode of NASA’s Illuminate.👇

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2026.06.20 16:00

Smile! Tomorrow is the Northern Hemisphere’s summer solstice! 😎☀️ This “sunny smile” is made of coronal holes — darker, cooler regions on the Sun where solar material escapes to space at incredible speeds. 🕳️ More on coronal holes in this episode of NASA’s Illuminate.👇

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