We can sometimes forget the remarkable sights and natural phenomena our world is capable of creating.
That’s why we’ve compiled a gallery of some of the most incredible phenomena known to man.
Australia's worst dust storm for 70 years has blanketed Sydney, leaving millions of people coughing and spluttering in the streets and causing chaos at the city's airports.
One onlooker described the scene as looking like "a tidal wave of sand", as it swept in from central Australia.
Australia has battled many uncommon weather conditions in recent days. Hailstorms, an early spring mini-heatwave, and wildfires have all battered the country.
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