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Astronomy Picture of the Day- Government shutdown so no APOD Today. I will dig up some of my favorites - Layered Rocks near Mount Sharp on Mars
NASA ^
| 9 Feb, 2015
| Image Credit: NASA, JPL-Caltech, MSSS
Posted on 10/21/2025 12:06:44 PM PDT by MtnClimber
Explanation: What caused these Martian rocks to be layered? The leading hypothesis is an ancient Martian lake that kept evaporating and refilling over 10 million years -- but has now remained dry and empty of water for billions of years. The featured image, taken last November by the robotic Curiosity rover, shows one-meter wide Whale Rock which is part of the Pahrump Hills outcrop at the base of Mount Sharp. Also evident in the image is cross-bedding -- rock with angled layers -- which were likely facilitated by waves of sand. Curiosity continues to find many layered rocks like this as it continues to roll around and up 5.5-km high Mount Sharp.
TOPICS: Astronomy; Science
KEYWORDS: apod; nasa
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To: MtnClimber
2
posted on
10/21/2025 12:07:00 PM PDT
by
MtnClimber
(For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
To: 21stCenturion; 21twelve; 4everontheRight; A Navy Vet; A_perfect_lady; abb; AFB-XYZ; AFPhys; ...
Pinging the APOD list
🪐 🌟 🌌 🍔
3
posted on
10/21/2025 12:07:42 PM PDT
by
MtnClimber
(For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
To: MtnClimber
4
posted on
10/21/2025 12:08:07 PM PDT
by
Fledermaus
("It turns out all we really needed was a new President!")
To: MtnClimber
Maybe Mars itself was built up in ‘layers’ like a head of cabbage.......................
5
posted on
10/21/2025 12:16:01 PM PDT
by
Red Badger
(Homeless veterans camp in the streets while illegals are put up in 5 Star hotels....................)
To: MtnClimber
6
posted on
10/21/2025 12:25:36 PM PDT
by
Magnum44
(...against all enemies, foreign and domestic... )
To: Red Badger
Maybe Mars itself was built up in ‘layers’ like a head of cabbage....................... Yes, red cabbage.
7
posted on
10/21/2025 12:47:57 PM PDT
by
MtnClimber
(For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
To: MtnClimber
Mars is a giant mound of coleslaw!..............
8
posted on
10/21/2025 12:56:33 PM PDT
by
Red Badger
(Homeless veterans camp in the streets while illegals are put up in 5 Star hotels....................)
To: MtnClimber
There’s a stretch of I-35 in southern OK that looks just like that, only the rock slabs and their striations are sharply diagonal. Makes me wonder whether OK might have had its own Chucxulub at some point.
9
posted on
10/21/2025 1:06:56 PM PDT
by
AFB-XYZ
(( We have two options: 1. Stand up, or 2. Bend over))
To: MtnClimber
The Federal government does not have the mone to pay for things like this.
To: MtnClimber
The Federal government does not have the mone to pay for things like this.
To: MtnClimber
I wonder about what kind of fish were in the lakes.
12
posted on
10/21/2025 2:16:58 PM PDT
by
minnesota_bound
(Making money now. Still want much more.)
To: MtnClimber
Mars sure has some amazing terrain. It would be awesome to see it in person. SOMEONE will, someday…..
13
posted on
10/21/2025 2:31:41 PM PDT
by
telescope115
(Ad Astra, Ad Deum…)
To: minnesota_bound
I wonder about what kind of fish were in the lakes. Meet the late Sir Wiggletrout of Mars:
To: MtnClimber
15
posted on
10/21/2025 6:39:56 PM PDT
by
SkyDancer
( ~ Am Yisrael Chai ~)
To: MtnClimber
Looks like some sort of writing on that rock.
16
posted on
10/21/2025 6:40:53 PM PDT
by
SkyDancer
( ~ Am Yisrael Chai ~)
To: MtnClimber
Looks like some sort of writing on that rock.
17
posted on
10/21/2025 6:41:47 PM PDT
by
SkyDancer
( ~ Am Yisrael Chai ~)
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