NEW : China asks U.S. to provide information so `` countries can take precautions '' Pentagon : Most debris will burn up on re-entry within two days . Her comments were included in an online United Nations report on this month 's Conference on Disarmament in Geneva , Switzerland . The remaining debris should re-enter the atmosphere within 40 days . Comment:
NEW : China asks U.S. to provide information so `` countries can take precautions '' Pentagon : Most debris will burn up on re-entry within two days . The remaining debris should re-enter the atmosphere within 40 days . Comment: