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Astronomy Picture of the Day - Planet Earth at Twilight
APOD.NASA.gov ^ | 22 Apr, 2021 | Image Credit: ISS Expedition 2 Crew, Gateway to Astronaut Photography of Earth, NASA

Posted on 04/22/2021 4:39:01 PM PDT by MtnClimber

Explanation: No sudden, sharp boundary marks the passage of day into night in this gorgeous view of ocean and clouds over our fair planet Earth. Instead, the shadow line or terminator is diffuse and shows the gradual transition to darkness we experience as twilight. With the Sun illuminating the scene from the right, the cloud tops reflect gently reddened sunlight filtered through the dusty troposphere, the lowest layer of the planet's nurturing atmosphere. A clear high altitude layer, visible along the dayside's upper edge, scatters blue sunlight and fades into the blackness of space. This picture was taken in June of 2001 from the International Space Station orbiting at an altitude of 211 nautical miles. But you can check out the vital signs of Planet Earth Now.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: nasa
To be added or removed from the Astronomy Picture of the Day ping list please send me a request via "Private Reply" (Mail).

For more detail go to the link and click on the image for a high definition image. You can then move the magnifying glass cursor then click to zoom in and click again to zoom out. When zoomed in you can scan by moving the side bars on the bottom and right side of the image.

1 posted on 04/22/2021 4:39:01 PM PDT by MtnClimber
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To: MtnClimber

2 posted on 04/22/2021 4:39:17 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screeen name for my FR home page.)
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To: 21stCenturion; 21twelve; 4everontheRight; abb; AFB-XYZ; America_Right; Art in Idaho; AZ .44 MAG; ...
Pinging the APOD list.

🪐 🌟 🌌


3 posted on 04/22/2021 4:39:51 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screeen name for my FR home page.)
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To: MtnClimber

Vladimir Lenin’s birthday, April 22, 1870 AKA Earth Day.


4 posted on 04/22/2021 4:49:44 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screeen name for my FR home page.)
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To: MtnClimber

weird things a transpiring on the grey line..


5 posted on 04/22/2021 4:50:40 PM PDT by mylife (The Roar Of The Masses Could Be Farts)
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To: MtnClimber

“At twilight” is a place, not a time. Because it’s always twilight somewhere. That’s the signpost, up ahead.


6 posted on 04/22/2021 5:07:53 PM PDT by Flash Bazbeaux
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To: MtnClimber

How do some people become a worldwide influence and not others? It’s the others God cherishes.


7 posted on 04/22/2021 6:17:46 PM PDT by Fester Chugabrew (No audit. No peace.)
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To: MtnClimber
Heavenly shades of night are falling
It's twilight time
Out of the mist, your voice is calling
'Tis twilight time

When purple-colored curtains
Mark the end of the day
I'll hear you, my dear, at twilight time

Deepening shadows gather splendor
As day is done
Fingers of night will soon surrender
The setting sun

The Platters - Twilight Time - Lyrics

8 posted on 04/22/2021 7:06:07 PM PDT by KarlInOhio (The greatest threat to world freedom is the Chinese Communist Party and Joe Biden is their puppet.)
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