Marc Kaufman 10:49 AM After six years of planetary observations, scientists at NASA say they have found convincing new evidence that ancient Mars had an ocean.
Top world stories
A Congress inquiry into attacks in Libya in 2012 has been extended and threatens to mar Hillary Clinton's campaign to be president.
No more cases of Ebola are known in Liberia but the country won't be officially declared Ebola-free before April 4.
The violent extremist group that espouses a return to a seventh-century caliphate, has been astonishingly successful at spreading its message using 21st-century social media.
8:48 AM Around 200 holiday skiers in the Italian Dolomites have been winched to safety after getting stranded in cable car cabins buffeted by 130km/h winds.
Latest world news
1:42 PM The way Fox reporter Emily Miller tells the story, she had been out walking the dog in suburban Washington DC when she returned home to find a thief in the house.
Richard Perez-Pena 1:31 PM After decades of pressure by animal rights activists who say that the giant creatures are treated cruelly, Ringling Bros and Barnum & Bailey announced on Thursday that its three circus companies that still tour the US, performing 1,000 shows a year, would phase out elephant acts, retiring all of the animals by 2018.
Rose Powell 1:22 PM Lisa Wilkinson has accused Christopher Pyne of defending the Indonesian government's highly militarised treatment of two Australians facing the death penalty.
Justin Huggler 11:47 AM Germany's intelligence service has suffered one of the most embarrassing leaks in its history after someone broke into its new Berlin headquarters and stole the taps, partially flooding the building.
Jewel Topsfield 11:04 AM A prisoner swap suggested by Foreign Minister Julie Bishop in a last ditch bid to spare the lives of the Bali nine ringleaders is "unthinkable", according to Indonesia's Attorney General.
Lindsay Murdoch and Tammy Mills 10:54 AM There a calls for the execution of a Melbourne man accused of killing a child and orchestrating an international paedophile ring in the Philippines.
10:16 AM Organisers of the prestigious World Press Photo awards have revoked a major prize after the entry, which purportedly portrayed the gritty Belgian industrial town of Charleroi, was accused of being staged.
By Jung Ha-won 7:18 AM The US ambassador to South Korea, Mark Lippert, is recovering from surgery after having his face and arm slashed by a knife-wielding activist in an attack applauded by North Korean state media.
7:04 AM New York: A Delta Air Lines plane with 125 passengers aboard slid off the runway at New York's LaGuardia Airport on Thursday during a snowstorm and crashed into a fence.
6:17 AM The chief of staff of President Joko "Jokowi" Widodo says the Indonesian leader is expected to visit the White House in early June to forge closer ties with the US.
Tom Allard 6:14 AM The absurd display during the transfer of Myuran Sukumaran and Andrew Chan to the site of their execution is part of a trend.
Brian K. Sullivan 6:12 AM An El Nino developed in the Pacific Ocean in February, and it's probably too weak to have much global impact, the US Climate Prediction Centre said.
Darya Korsunskaya 4:54 AM A note purported to be in the assassinated opposition leader's hurried scrawl says 17 Russian paratroopers were killed in fighting in Ukraine.
Ishaan Tharoor 4:22 AM The award came before the king's meeting with US Secretary of State John Kerry.
Andrea Hopkins 4:08 AM Reverend Hyeon Soo Lim was last heard from on January 31 after North Korea has clamped down on Christian groups.
Abby Phillip 4:04 AM A 7-month-old baby is unharmed after being thrown 25 feet from a van during a serious roadway accident that involved a van, a car and a semi-trailer.
Paola Totaro 2:22 AM Pope Francis has given the green light for an historic reform of the Holy See’s finances, vesting Cardinal George Pell with sweeping new financial oversight powers but stopping short of delivering him control over Vatican real estate.
Philip Dorling 1:27 AM Australian spies are targeting Indonesia’s largest mobile phone network as well as the telecommunications systems of Australia’s small Pacific Island neighbours, according to documents obtained from the former US intelligence contractor Edward Snowden.
Saif Hameed, Dominic Evans 1:17 AM Islamic State militants have set fire to oil wells north-east of the city of Tikrit to obstruct an assault by Shi'ite militia fighters and Iraqi soldiers trying to drive them from the area.