It turns out that Mars spiders aren’t really spiders at all. The close up image really resembles a giant spider, but NASA scientists have another explanation.
According to the NASA, the spiders are actually deep troughs on the Mars surface.
A NASA spokesman said: “In the region where the High Resolution Imaging Science Experiment (HiRISE) camera on NASA’s Mars Reconnaissance Orbiter took this image, we see troughs that form a starburst pattern. In other areas these radial troughs have been referred to as spiders, simply because of their shape.”
NASA scientists explained that the strangely shaped troughs start to appear with the onset of spring on the surface of Mars, when ice made of carbon dioxide starts to melt and results in such shapely patterns.
The NASA statement added: ‘The troughs are believed to be formed by gas flowing beneath the seasonal ice to openings where the gas escapes, carrying along dust from the surface below. The dust falls to the surface of the ice in fan-shaped deposits.”