Can NASA launch a nuclear mission to Mars by 2028? The U.S. space agency’s Skyfall project calls for sending robotic helicopters to Mars on a nuclear-powered spacecraft before the end of Donald Trump’...

Four astronauts ​blasted off from Florida on Wednesday ‌on ⁠NASA's Artemis II mission, ⁠a high‑stakes 10-day trip ​around ​the ​moon that ‌marks the United States' boldest step yet toward returning ‌h...