17th March - Today's News: Scientists Discover What Steve Is

Mystery of purple lights in sky solved with help from citizen scientists - we now know what Steve is .... 

Tropical Cyclone Marcus moves past Darwin as police rescue two people.   Now heading for Kimberley.

Meanwhile, girls in bikinis dominate the predictions that Sydney to reach its hottest March day on record as 41C scorcher is set to hit the city

Pacific heat wave known as ‘The Blob’ appears to be in retreat

And soot transported from elsewhere in world contributes little to melting of some Antarctic glaciers