What Botswana's pristine wetlands and waterways are teaching Australians about climate change, over-extraction and conservation.

A once-abundant snail nearly disappeared as weirs and irrigation diverted water from its river home. But it found protection in the very structures that almost wiped it out.

Domestic and international students turn a remote sheep station into a testing ground for their designs as they compete in the Australian Universities Rocket Competition. 

The federal government has not ruled out using more water buybacks to make up a shortfall in a key Murray-Darling Basin Plan water-saving target.

The pool in the western NSW town of Walgett will remain closed this summer, with council finding it was unsafe and beyond repair.

Just as he does every year, Craig Lowndes is drawing on memories of Australian motorsport legend Peter Brock to fuel yet another attempt at the Bathurst 1000.

The Albanese government is tipping in $674 million, while the Minns government is investing $610 million towards the upgrades.