HiRISE | HiPOD Updates

HiPOD: Week of 21 April 2025

	Cross Cutting in a Crater We can tell that these features are younger than the surrounding and underlying material due to the cross-cutting relationship with the small impact crater.
	Gullies on the Northern Crater Slope in Terra Sirenum These gullies start at or below the crater rim and are relatively large, with broad source alcoves and inner channels that continue down onto the gullies’ aprons.
	Decoding a Small, Fresh Impact Site The details in the appearance of this small impact site give clues to its formation and reveal information about the local subsurface.
	Contorted Ridges in Hellas Planitia These ridges are highly contorted, or “bent,” in many different directions, and some ridges are broken into shorter segments.
	Sunrise to Sunset on the Martian Mimetolith This particular mesa acquired a certain notoriety when an image was captured by the Viking 1 orbiter on 25 July 1976. The shadows cast across the feature created a pareidolic perception of a human face.