Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Astronomy Picture of the Day - Shadows at the Moon's South Pole
APOD.NASA.gov ^ | 10 Apr, 2022 | Image Credit: NASA, Arizona State U., Lunar Reconnaissance Orbiter

Posted on 04/10/2022 4:44:44 PM PDT by MtnClimber

Explanation: Was this image of the Moon's surface taken with a microscope? No -- it's a multi-temporal illumination map made with a wide-angle camera. To create it, the Lunar Reconnaissance Orbiter spacecraft collected 1,700 images over a period of 6 lunar days (6 Earth months), repeatedly covering an area centered on the Moon's south pole from different angles. The resulting images were stacked to produce the featured map -- representing the percentage of time each spot on the surface was illuminated by the Sun. Remaining convincingly in shadow, the floor of the 19-kilometer diameter Shackleton crater is seen near the map's center. The lunar south pole itself is at about 9 o'clock on the crater's rim. Crater floors near the lunar south and north poles can remain in permanent shadow, while mountain tops can remain in nearly continuous sunlight. Useful for future outposts, the shadowed crater floors could offer reservoirs of water-ice, while the sunlit mountain tops offer good locations to collect solar power.


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 04/10/2022 4:44:44 PM PDT by MtnClimber
[ Post Reply | Private Reply | View Replies]

To: MtnClimber

2 posted on 04/10/2022 4:45:02 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on mycreen name for my FR home page.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: 21stCenturion; 21twelve; 4everontheRight; abb; AFB-XYZ; AFPhys; America_Right; AZ .44 MAG; ...
Pinging the APOD list.

🪐 🌟 🌌 🍔


3 posted on 04/10/2022 4:45:33 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on mycreen name for my FR home page.)
[ Post Reply | Private Reply | To 2 | View Replies]

To: MtnClimber

That’s either frightening or interesting. I can’t tell which.


4 posted on 04/10/2022 4:56:32 PM PDT by Telepathic Intruder
[ Post Reply | Private Reply | To 1 | View Replies]

To: MtnClimber

It looks like the killer clown in the Moon!


5 posted on 04/10/2022 5:01:29 PM PDT by 17th Miss Regt
[ Post Reply | Private Reply | To 2 | View Replies]

To: Telepathic Intruder

Interesting!

If there’s ice in there, there’s probably a lot.

That ice can be used by humans. Drinking, irrigation, and fuel, by breaking the hydrogen from the oxygen, and, of course, the oxygen gives air to breath. There’s nitrogen mixed into the lunar soil so they should be able to recreate a nice atmosphere.


6 posted on 04/10/2022 5:15:16 PM PDT by Alas Babylon! (Rush, we're missing your take on all of this!)
[ Post Reply | Private Reply | To 4 | View Replies]

To: Alas Babylon!
...they should be able to recreate a nice atmosphere.

Woah!

I meant in their habitats, domed cities or underground tunnels, not the entire surface of the Moon.

7 posted on 04/10/2022 5:16:49 PM PDT by Alas Babylon! (Rush, we're missing your take on all of this!)
[ Post Reply | Private Reply | To 6 | View Replies]

To: Alas Babylon!

Still, terraforming the moon is not a new idea, but a little far off. There is ice at the poles in some of the permanently shadowed craters, so a moon base is possible. The real problem is the low gravity, which is not enough to prevent bone deterioration over time. So you wouldn’t want to live there permanently.


8 posted on 04/11/2022 3:50:07 AM PDT by Telepathic Intruder
[ Post Reply | Private Reply | To 7 | View Replies]

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson