Chicago: Doomsday predicters can take some solace. Fears that a hurtling ball of fire can ravage the Earth has been laid to rest as a new study says comets probably won
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/comet-unlikely-cause-mass-extinction-earth
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/science-and-technology
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/physical-science
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[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/research-agencies
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[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/washington