Researchers have warned that GPS systems are becoming increasingly vulnerable to accidental interference or deliberate jamming, raising concerns about reliability and security.
Relatively harmless microbes which pass through water treatment systems could be allowing dangerous bacteria to reproduce in water supplies, research has found.
A number of introduced plant species have become more like natives, suggesting rapid evolution could happen far more frequently than previously thought.
Australia could have an early warning system that would let authorities predict flash floods and warn people in the path of danger, Associate Professor Linlin Ge says.