Sci­en­tists seek to re­duce as­ter­oid risk

China Daily European Weekly - - News Digest -

Chi­nese sci­en­tists have ap­pealed for fur­ther strength­en­inf of in­ter­na­tional co­op­er­a­tion in space ex­plo­ration, aim­ing to re­duce the risk from near-Earth ob­jects. Com­pared with global is­sues like food se­cu­rity, en­ergy short­age, cli­mate change, cy­ber­at­tacks and en­vi­ron­men­tal pol­lu­tion caused by hu­man ac­tiv­i­ties, more se­ri­ous threats to the planet may come from space, said Chen Jian­sheng, an aca­demi­cian of the Chi­nese Academy of Sciences and a se­nior as­tronomer, at a con­fer­ence pro­mot­ing science lit­er­acy. There are more than 18,000 near-Earth as­ter­oids, around 800 of which have a di­am­e­ter greater than 1 kilo­me­ter.

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