Sydney has smashed a grim record as wild weather continues to pummel the state, with severe thunderstorms and flash flooding triggering hundreds of calls for help.

With Sydney to play host to the world's largest space conference this coming week, Katherine Bennell-Pegg says it is more important than ever to highlight the benefits of growing Australia's space ...

Oysters will be scarcer, smaller and more expensive on Christmas tables this year after twin climate disasters in two states.