NASA Wants Amateurs to Track Dangerous Asteroids

Crowdsourcing the search for existential threats

NASA has called on amateur astronomers and other citizen-scientists to help identify the smaller and potentially destructive asteroids lurking in the cosmos, which could wipe out a city upon impact with Earth.

Scientists estimate that about 90 per cent of asteroids that are one kilometre or larger which pose potential planet-wide danger have been surveyed. However, more than 99 per cent of asteroids that are 30 to 40 meters in size which might not destroy the planet, but could very easily wipe out a city - have yet to be found and tracked, the 'National Geographic' reported.