Last week a dust storm swept its way from the Australian outback and blanketed Sydney with orange dust. The dust storm was pretty large for Earth: 500km x 1000 km, and unusual in that it managed to reach Sydney instead of petering out in the outback. The Big Picture has a great series of photos of the storm, many of which look remarkably martian (if you ignore the water and … Continue reading Welcome to Mars! … I mean, Syndey