Latika Bourke and Adele Ferguson 6:02 PM The son of billionaire mining magnate Gina Rinehart has lashed out at cabinet minister Barnaby Joyce's "dangerous" intervention in the court battle over a $5 billion trust and questioned whether the potential Nationals Leader is fit to serve as a Minister.
Tom Arup, Environment Editor 4:54 PM The former climate adviser to two Labor governments, Professor Ross Garnaut, says Australia should ensure the heaviest burden of cutting greenhouse gases is not pushed onto future generations, and new emissions targets should be set accordingly.
Latika Bourke 4:52 PM Oscar winning actress Cate Blanchett will appear as the star attraction at a major fundraising event for the opposition's most senior woman in Federal Parliament – Tanya Plibersek.
James Massola 4:41 PM The words "man and woman" and "husband and wife" will be replaced by "two people" in the Marriage Act under Bill Shorten's proposal to redefine marriage in Australia.
Latika Bourke 4:16 PM Former federal Liberal MP Alby Schultz has launched a passionate defence of his longtime friend and billionaire Gina Rinehart, urging the Australian media to lay off the country's most successful businesswoman.
Matthew Knott 4:06 PM The Abbott government plans to spend over $36 million on advertising campaigns promoting the Intergenerational Report, this year's budget and its white paper on tax reform.
2:23 PM Senior education officials will support law enforcement agencies to prevent Australian schoolchildren from being radicalised and lured overseas by foreign fighters.
Mark Kenny 1:57 PM A new push within the Australian Labor Party for a change to Australia's generous negative gearing laws looks set for discussion at July's national conference in a development which could add to the degree of electoral difficulty for Bill Shorten heading into the next election.
Latika Bourke Lisa Cox, Louise Hall 12:36 PM The son of billionaire mining magnate Gina Rinehart has lashed out at cabinet minister Barnaby Joyce's "dangerous" intervention in the court battle over a $5 billion trust.
James Massola 11:24 AM Momentum for a cross-party same sex marriage bill is growing, with Greens senator Sarah Hanson-Young confirming she has also had discussions with Liberal MP Warren Entsch and Labor MP Graham Perrett about backing a "tri-partisan bill" that would end the political impasse over the issue.
Lisa Cox 10:12 AM Indigenous landholders will mount a fresh Federal Court challenge to the development in the Galilee Basin of Australia's largest coal mine.
Josephine Tovey 7:14 AM We take a look at some of the most powerful videos released in the lead-up to the successful Irish referendum for marriage equality.
James Massola 1:52 AM Liberal MP Warren Entsch and Labor MP Graham Perrett are prepared to team-up on a same-sex marriage bill in a potential circuit-breaker that would end the political impasse over the social reform.
Richard Willingham 12:41 AM Australian Deputy PM Warren Truss says any action at December's Paris meeting needs to include a commitment from developing nations to do their bit for climate change.
Tom Arup and Lisa Cox 11:05 PM Early on Saturday morning we get the biggest clue yet to whether the Great Barrier Reef will be deemed a world heritage site "in danger".
Dan Harrison 9:23 PM Federal Sport Minister Sussan Ley said it was too early to consider Australia making another World Cup bid while corruption allegations cast a shadow over the sport's governing body.
David Wroe 8:01 PM Australia will have to choose between safeguarding itself against a strategic "storm brewing" and economic "dark clouds" gathering, the nation's leading independent defence economist says.
Josh Gordon Victorian and South Australian governments say states may be unable to deliver "high quality" standards for all students because of federal budget cuts.
Latika Bourke Kevin Rudd's home insulation scheme was "appalling public policy, appallingly executed" and drove advisers working on the program "close to despair", says former climate minister Greg Combet's chief of staff.
Nassim Khadem ACCI chief Kate Carnell hopes the government will be brave enough to implement Harper's proposed reforms, backing most of the proposals.
David Wroe The Abbott government is conducting a "brave experiment" by giving military personnel below-average pay rises.
James Massola Australians will be "shocked" if Prime Minister Tony Abbott fails to grant Liberal MPs a conscience vote on same-sex marriage, Opposition Leader Bill Shorten says, while conceding the issue has to be handled in a bipartisan fashion.