NASA’s DART asteroid-hunting mission can turn disastrous…: Read here why
Live MintNASA’s Double Asteroid Redirection Test, the world’s first mission to test technology for defending Earth against potential asteroid or comet hazards, will hit a target asteroid on 26 September. An HT Tech report cited, in their 1964 book Islands in Space: The Challenge of the Planetoids, astronomers Dandridge Cole and Donald Cox envisioned manoeuvring asteroids to serve as the ultimate deterrent, a "planetoid bomb". Cole and Cox wrote that a "captured planetoid" of between 2 kilometres and 8 kilometres in diameter would have the "impact energy equivalent to several million megatons", would create a crater 30 to 80 kilometres in diameter, and "would destroy whole countries through Earth shock effects". A captured planetoid would be the ideal deterrent system", they said, because it could not be de-orbited in less than several hours and "would not be feared by a potential enemy as a surprise attack weapon". Such an attack might even be carried out without much danger of retaliation" because it would be difficult to distinguish from a "natural catastrophe", the report also said.