Mankind's first asteroid defense experiment: using an artificial satellite, it hit an asteroid of 170 meters

{"info":{"title":{"content":"人类首次小行星防御实验：用人造卫星，命中了一颗170米的小行星","en":"Mankind's first asteroid defense experiment: using an artificial satellite, it hit an asteroid of 170 meters"},"description":{"content":"导语科学界普遍认为，6500万年前，有一颗直径约为10到15公里的小行星撞击地球，导致非鸟类恐龙灭绝，古生物界经历了一次...","en":"IntroductionThe scientific community generally believes that 65 million years ago, an asteroid with a diameter of about 10 to 15 kilometers hit the earth, causing the extinction of non-avian dinosaurs."}},"items":[]}