The destruction, however, would be quite huge, and the loss of life would be in the billions.

Dr Lindley Johnson spoke about this in Vienna on Wednesday after emerging from a session of the United Nations committee on space exploration.

Threats from space became a hot topic last weekend after a huge meteorite crashed into Russia’s Chelyabinsk Region, blowing out countless window panes and leaving close to 1,500 people injured by flying debris and broken glass.

Voice of Russia, RIA