NASA Administrator Bill Nelson criticized China for creating unnecessary risks as an uncontrolled core segment of its biggest rocket reentered Earth’s atmosphere and mostly burned up before landing in the Indian Ocean above the Maldives on May 9. “It is clear that China is failing to meet responsible standards regarding their space debris,” the former senator said in a statement. The return to Earth of the out-of-control space junk had raise fears that debris could fall on populated areas and cause severe damage or deaths. China’s space agency said most of the 100-foot, about 40,000-pound rocket stage burned up during reentry. China’s official Xinhua News Agency said reentry occurred May 9 at 10:24 a.m. Beijing time. “The vast majority of items were burned beyond recognition during the reentry process,” the report said. People in Jordan, Oman, and Saudi Arabia reported sightings of the Chinese rocket debris on social media, with scores of …