Mars has many weird geological features, from deep underground cave-like systems formed by the passage of lava to global dust storms which can cover the entire planet. It has strange features on its surface too, like bizarre looking “spiders” more formally known as araneiform terrain. Advertisement
Now, researchers have been able to recreate these spider features in a lab here on Earth, showing how they may have formed on the red planet….

Check out the original article: [Slashgear]Mars Has Creepy Geological ‘Spiders’ And Researchers Have Recreated Them On Earth