For years, astronomers have been puzzled by the presence of two gigantic, high-energy “bubbles” towering over and beneath the Milky Way’s center, extending 50,000 light-years into space. First ...
The crash of the Jet Rescue Air Ambulance, which operated the Learjet 55, comes two days after the country’s deadliest aviation disaster in almost a quarter century, in Washington, D.C.
NASA's MARVL project is developing a modular nuclear electric propulsion system for faster Mars travel. Robotic in-space assembly and advanced cooling tech could cut trip times in half.