Sydney - Two small planes collided in mid-air in Sydney's south-west Thursday, killing two women, both believed to be in their 20s.

The plane carrying the women, a Cessna 152 aircraft owned by the Basair Aviation College, crashed into the backyard of a house in the Sydney suburb of Casula.

The two women killed were a flight instructor and a student pilot.

The other plane, a single-engine Liberty aircraft owned by the Sydney Flight Training Centre, with an 89-year-old male instructor and 25-year-old male student pilot aboard, made an emergency landing at Bankstown Airport. The two men were unhurt.

Sydney, Dec 18: Recent failures to score runs by Australian opener Matthew Hayden has put his Test future in doubts with retirement whispers growing that he may not last to fulfill his dream to play a farewell Ashes tour in England next year.

As Australia's batting strongman failed again in Perth, his former opening partner Justin Langer admitted that he did not know what the future held for his best friend and is unsure if the struggling opener wants to play his farewell Ashes tour.

Sydney - Australia's acclaimed film director, Baz Luhrmann, and Oscar-winning actress Nicole Kidman may never team up again following the completion of the epic outback movie Australia, media reports said Wednesday.

"We both said we can't make another movie together because there are only so many life-transforming events we can go through," Luhrmann told Britain's Daily Telegraph newspaper.

When filming Moulin Rouge, Kidman, 41, was breaking up with then-husband Tom Cruise and Luhrmann's father died on the first day of filming,

Sydney, Dec. 17: Young New South Wales opener David Warner has signed a two-year deal to join Indian Premier League side Delhi Daredevils.

Sydney - An Australian lawyer used the social networking website Facebook to track down a defaulting couple when all other conventional methods to find them failed, news reports said Tuesday.

A judge of the Australian Capital Territory Supreme Court allowed lawyer Mark McCormack to use Facebook to serve legal documents to a couple who defaulted on a home loan and couldn't be found at their listed address.

The court also granted him permission to send them emails and leave the court papers at their last known address.

Sydney, Dec 16 : An international study has determined that methane levels in the atmosphere have started to rise after almost eight years of near-zero growth.

According to a report in ABC News, the study involved CSIRO, the Massachusetts Institute of Technology (MIT), Scripps Institution of Oceanography and the University of Bristol.

Dr Paul Fraser of the CSIRO, who co-authored the study, said that samples taken from 12 stations across a global network showed a trend upwards in methane levels.

"After seven years (of zero growth), methane has started to rise again to growth rates of the early 1990s," Fraser said.