Mining billionaire Clive Palmer is to attempt a return to federal politics, announcing he will lead his party's Senate team in the upcoming election.

Victorians can now get their COVID-19 booster shot sooner, with the government shortening the interval from the second dose down to three months at state hubs.

Prime Minister Scott Morrison has urged businesses not to enforce rules requiring employees to return a negative rapid antigen test each day before they start work.

All the homes on one of Tonga's small outer islands were destroyed in the massive volcanic eruption and tsunami, with three people so far confirmed dead, the government says in its first update since the disaster hit.

The Hobart Hurricanes have snatched a six-run win over Melbourne Renegades to secure their place in the BBL finals, derailing a chase that Aaron Finch started in style.

Knocked over shipping containers at Tonga's Nuku port, and volcanic ash covered houses and runway at Ha'apai airport show some of the destruction wrought on the small Pacific nation.

Novak Djokovic has kept a low profile as he returned to the place where he will always be welcome following his deportation from Australia.

Police have returned to the NSW property where a missing nine-year-old girl was last seen as rescue crews battled rain and fog while scouring dense bushland on the fifth day of the search.

A giant asteroid, bigger than any building on Earth, is about to expected to soar past Earath.

The entire world will take a different view of Australia as a result of the "catastrophic" Novak Djokovic visa fiasco, according to fellow Serbian tennis star Laslo Djere.