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46· Steady
Health & Science2h 4m ago
Noctilucent clouds, which are the highest clouds on the planet, can only be seen in the summer, and peak viewing season has arrived in the Northern Hemisphere.
Northern Hemisphere, northern Europe, Canada, northern United States
Who
Jen Carfagno, Matt Makens
What
Noctilucent clouds, which are the highest clouds on the planet, can only be seen in the summer, and peak viewing season has arrived in the Northern Hemisphere.
When
Thu, 11 Jun 2026 11:02:32 GMT · 2h 4m ago
Where
Northern Hemisphere, northern Europe, Canada, northern United States ·
Why
They typically form in the mid- to high latitudes where the mesosphere cools over the polar regions during summer due to atmospheric circulation.
The Frontline Impact
How this affects you
Noctilucent clouds, forming 50 miles above Earth's surface, are appearing more frequently and at lower latitudes, potentially indicating changes in Earth's upper atmosphere, such as increased atmospheric water vapor from a warming climate and rocket launches.
Story chain
1 event in this threadNo related history yet - this is the origin event.
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