When To See Weird ‘Space Clouds’ Glow After Sunset

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When To See Weird ‘Space Clouds’ Glow After Sunset — And What They Are

forbes.com/sites/jamiecartereurope/2025/05/23/expect-weird-space-clouds-to-glow-late-at-night---heres-why

Noctilucent clouds, Earth's highest clouds, shine blue in the twilight sky from late May to August in the northern hemisphere — and all you need are your naked eyes.

This story appeared on forbes.com, 2025-05-23 10:00:00.