https://www.cbc.ca/radio/quirks/evidence-ocean-mars-1.6639651



Quirks & Quarks·Analysis

Strong evidence that an ancient ocean once covered Mars

Bob McDonald's blog: A massive ocean like this increases the potential for life on the red planet

 
Bob McDonald · CBC Radio ·  
 
The picture can't be posted but an article is available to read:

Stitched together from 28 images, this view from NASA's Curiosity Mars rover was captured after the rover ascended the steep slope of a geological feature called 'Greenheugh Pediment.' The floor of Gale Crater can be seen in the distance (at the top of the image), near a region called Aeolis Dorsa which researchers believe was once a massive ocean. (NASA/JPL-Caltech/MSSS)