MarsNews.com

Protecting the Earth Space.com

A robot spacecraft flies off to another planet, scoops up some soil and brings it back to Earth. Inside that scoop of dirt are living things that somehow escape, run amok and threaten our world. The scenario might sound outlandish until you consider this: For the first time since the 1960’s Apollo moon landings, the federal government is making plans to protect Earth from any extraterrestrial life forms brought back — on purpose — by scientific space missions.