Potentially deadly comets could be spotted many years in advance by following the meteoroid trails they leave near Earth, new research shows.

'Crumb trails' of meteoroids could reveal potential 'planet-killer' comets years before they reach Earth

Source: space
Source Link: https://www.space.com/the-universe/comets/crumb-trails-of-meteoroids-could-reveal-potential-planet-killer-comets-years-before-they-reach-earth