
Arachnophobes need not fear: A new European Space Agency (ESA) image of Martian "spiders" actually shows seasonal eruptions of carbon dioxide gas on the Red Planet.
The dark, spindly formations were spotted in a formation known as Inca City in Mars' southern polar region. Images taken by ESA's Mars Express orbiter and ExoMars Trace Gas Orbiter show dark clusters of dots that appear to have teeny little legs, not unlike baby spiderlings huddling together.