China is building early warning system to spot Earth-smashing asteroids

China is developing an early warning system to spot asteroids that might smash into the Earth, according to the scientist leading the national mission.China planned to deploy multiple telescopes on the ground, alongside a constellation of satellites in orbit, state-run Science and Technology Daily quoted Li Mingtao, chief scientist at the asteroid monitoring and early-warning research centre under the China-national-space-administration" class="entity-link entity-organization" data-entity-id="121223" data-entity-type="organization">China National Space Administration, as saying.None of the asteroids that had been discovered so far were thought to be on a clear collision course with Earth, Li said in the report on June 30, which the United Nations designated as International Asteroid Day.