<p>The U.S. space agency&rsquo;s Skyfall project calls for sending robotic helicopters to Mars on a nuclear-powered spacecraft before the end of Donald Trump&rsquo;s presidency</p>
Nuclear propulsion refers to the use of nuclear reactions to generate thrust for spacecraft. This technology has the potential to enable faster travel to distant destinations in space, such as Mars and beyond, by providing a more efficient and powerful means of propulsion compared to conventional chemical rockets.
Robotic exploration refers to the use of unmanned spacecraft and robots to explore celestial bodies. These technologies allow for data collection and analysis without the risks associated with human presence, enabling missions to distant locations.