Earth is in real danger and we should get to work building defense systems if we want to be safe, a NASA scientist argued.

During its rich and long history, planet Earth has seen a number of cataclysmic predicaments. One such phenomenon is known as an extinction event. Modern science recognizes 6 such major extinctions but there were probably many others of smaller magnitudes.

Fearing one such scenario might be waiting to happen, a concerned NASA scientist made some sour valuations on mankind’s ability to defend itself in the face of imminent, catastrophic danger.

This week, the American Geophysical Union held a meeting to discuss important matters regarding the security of our world. One of the guest speakers was researcher Joseph Nuth from the NASA Goddard Space Flight Center and his message was not a very comforting one.

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