Space Did Mars have ice cauldrons which could support life? Andrea James

geology This titanium-infused quartz crystal is totally mesmerizing Xeni Jardin

Science Earth's magnetic field is weakening Mark Frauenfelder

geology Watch a river change its path over the years Rob Beschizza

automotive Fordite: a rare mineral only found in old Detroit auto-painting facilities Cory Doctorow

geology Wyoming has a nice new hole in it after landslide Rob Beschizza

california California is sinking as it sucks remaining water out of underground aquifers Mark Frauenfelder

Science The Opal's Fire Maggie Koerth