[NEWS] Five science links: Antarctica blood falls, Great Green Wall, Mars, blueberry Earth, blue

[rfmcdonald]

• The mysterious cause of the "blood falls" of Antarctica has been uncovered. VICE's Motherboard reports.


• The Great Green Wall of Africa may not have prevented desertification in the Sahel, but it is a project that has left some positive legacies. Smithsonian Magazine reports.


• Universe Today considers if cyanobacteria could be used to help terraform Mars. (Maybe, though there would still be the planet's shortages of basic chemicals to deal with.)


• The Atlantic reports on the almost surprisingly revelatory nature of an Anders Sandberg paper imagining what would to the Earth if it became a mass of blueberries.


• WBUR reports on the discovery of a new pigment for my favourite colour blue, comprising (among other elements) the rare indium.