Source: United States & Canada – South China Morning PostNasa’s newest Mars rover has successfully collected its first rock sample for return to Earth, after last month’s attempt came up empty.The Perseverance rover’s chief engineer, Adam Steltzner, called it a perfect core sample.“I’ve never been more happy to see a hole in a rock,” he tweeted on Thursday.A month ago, Perseverance drilled into much softer rock, and the sample crumbled and did not get inside the titanium tube. The rover drove half a mile to a better sampling spot to try again. Team…Read More