Two space spectacles will light up the night's sky within hours of each other.

Travellers escaping on Christmas holidays are facing delays, with domestic airlines cancelling or delaying dozens of flights from Sydney Airport on Friday evening.

A major climate summit of more than 190 nations was set to run overtime as delegates struggled to narrow gaps on guidelines to reduce greenhouse gas emissions and raise aid for developing nations.

Severe thunderstorms, giant hailstones and damaging wind warnings as storm approaches.

On this day 25 years ago a freak weather event, described as a mini-tornado, hit Melbourne. We remember the havoc it caused with this article from the archives.