https://www.cnet.com/news/mars-dust-storm-covers-nasa-curiosity-rover-and-red-planet/

"The Martian dust storm has grown in size and is now officially a "planet-encircling" (or "global") dust event," reads a release from NASA on Wednesday. 

A similar monster storm covered almost the entire Martian surface in 2001 and again in 2007, but the planet has one key new addition since then: NASA's Curiosity rover.