as technicians packed up the newest Mars rover for launch. One of the last things installed was a nuclear power generator. It holds marshmallow sized pellets of plutonium that will fuel the electric ...

Add Yahoo as a preferred source to see more of our stories on Google. A rhino named Beckham after the former England footballer is one of the animals who have had the pellets injected into their horns ...

Beckham, a 1.7 ton rhino named after the English footballer, on Tuesday had a radioactive pellet drilled into his horn as a program to discourage poaching of the endangered animals in South Africa ...

On Thursday, NASA is expected to launch its new Mars rover, Perseverance, on a mission to search for signs of ancient life on the Red Planet. It’s the agency’s largest and most autonomous Martian ...