Planetary defence

Monday, July 31, 2017

Monday, July 31, 2017

Asteroid in Earth flyby to be used by NASA to test 'planetary defence system'

Nasa to test 'planetary defence system' in asteroid fly-by

Nasa to test 'planetary defence system' in asteroid fly-by

The rock, called 2012 TC4, will pass the planet at a distance of 6,880 kilometres