Bizarre ‘spiders’ on Mars are made by carbon dioxide vapor escaping from cracks in polar ice
The Spiders from Mars isn’t just the name of David Bowie‘s backing band in the 1970s—it’s the nickname given to mysterious formations on Mars that resemble creepy black arachnids. These ‘araneiforms’ (Latin for ‘spider-like’) were first observed 20 years ago, but astronomers have finally determined they’re caused by carbon dioxide vapor escaping from cracks in … Read more