Retired astronaut and current Sen. Mark Kelly (D-Ariz.) celebrated NASA ’s “pretty exciting” announcement on Thursday after the space agency highlighted how scientists found sugars essential for life on samples of a near-Earth asteroid . While the discovery of the sugars glucose and ribose — which NASA’s OSIRIS-REx spacecraft gathered from the asteroid Bennu — did not indicate “evidence of life,” the findings show that “building blocks of biological molecules were widespread throughout the