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Hirise

All articles tagged with #hirise

Bear on Mars? Pareidolia Behind a Hill That Looks Like a Face
space25 days ago

Bear on Mars? Pareidolia Behind a Hill That Looks Like a Face

A HiRISE photo of a Martian southern highlands hill appears bear-like, but scientists say the look is due to pareidolia—the nose is a V-shaped collapse, the eyes are two craters, and a circular fracture forms the head—higher-resolution images show it’s simply a mesa; such features, including salt-pond deposits that could host biosignatures, remain relevant targets for future Mars missions.

Beagle 2: Mars landing confirmed, but radio silence remains explained by deployment
space1 month ago

Beagle 2: Mars landing confirmed, but radio silence remains explained by deployment

Beagle 2 separated from Mars Express in December 2003 and appeared to land in Isidis Planitia, beginning solar-panel deployment; no signal was received. In 2015 HiRISE imagery suggested the lander and deployed panels, but later work showed the panels' final configuration could vary and that the antenna was likely obscured by panels, explaining the lack of contact. Subsequent modelling (notably 2016 Leicester/De Montfort work) indicated at least three panels probably opened, possibly all four, leaving uncertainty about exactly what failed. The finding marks a milestone in showing the mission reached Mars, but the science package never returned, and the exact failure mode remains unresolved.

Mars’s Wind-Carved “Pyramid” Isn’t Man-Made, Just Geology
science6 months ago

Mars’s Wind-Carved “Pyramid” Isn’t Man-Made, Just Geology

A pyramid‑like feature in Mars’ Candor Chasma known as the Candor Tetrahedron drew attention for resembling an ancient monument, but high‑resolution HiRISE imagery shows it’s a natural wind‑ and water‑eroded hill among other rock forms. The three sides aren’t identical, and the surrounding landscape, including positive relief knobs and aeolian ripples, supports a geological explanation rather than artificial construction. The shape is a classic case of pareidolia in planetary geology.