Ukrainian President Volodymyr Zelenskyy has warned nations to prepare for the possibility that Russia will use tactical nuclear weapons.
No government is seriously concerned about its impact on future generations despite intergovernmental reports and claims to the contrary, argues professor of public policy Jenny Stewart.
Researchers are closer to creating a micro-aircraft that flies with the manoeuvrability and energy efficiency of an insect after decoding the aerodynamic secrets of insect flight.
The first solid evidence of a new class of medium-sized black holes has been discovered in a distant galaxy by an international team of astronomers.
The NSW Premier Morris Iemma addressed graduating medical students at UNSW last week, calling on them to show compassion in their work as doctors.