The red regions indicate a speed of 7.5 miles/s (12km/s), the green from 26 miles/s (42km/s) and the blue from 41 miles/s (66km/s) ...

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

When these meteoroid streams strike Earth, some of them rain down the atmosphere as meteor showers. Scientists say that these ...