The European Space Agency’s (ESA) ExoMars Trace Gas Orbiter satellite has discovered a strange structure they call the “martian spider mark”.
The European Space Agency’s (ESA) ExoMars Trace Gas Orbiter satellite has discovered a strange structure they call the “martian spider mark”.
TL;DR - nothing mysterious going on here
Of course no spider aliens as the clickbait might insinuate.
These are cracks in the ice sheet caused by gases which when released to the surface bring dark material with them is spread on the ground in that manner.