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The winter solstice took place at 5:02 a.m. EST today, and will be closely followed by the Great Conjunction, the closest…
June 21 marked the official start of astronomical summer in the Northern Hemisphere.
Here you can find satellite imagery showing the change of seasons due to the Earth's tilt.
In 2019, the official start of fall—the Autumnal Equinox—was Monday, Sept. 23 at 3:50 a.m. EDT.
Our most beautiful satellite imagery, from unique landscapes to colorful visualizations from across our planet Earth.
NOAA satellites watched spring arrive in the Northern Hemisphere on March 20, 2025.
Spring has officially sprung here in the Northern Hemisphere—while in the Southern Hemisphere, autumn has begun!
This week, top officials from NOAA shared new updates on efforts to resolve the technical issues impacting the performance…