The Perseids result from Earth passing through debris — bits of ice and rock — left behind by Comet Swift-Tuttle, which last passed close to Earth in 1992.
Larger than 99 per cent of known space rocks, the asteroid ranks among the five largest celestial objects expected to come within 15 billion kilometres of Earth from now until 2200. Jake Foster, a ...
Scientists were today warning of a possible asteroid collision with the Earth. An asteroid around two-thirds of a mile wide (1.2km) could hit the earth on March 21, 2014 and has been classified as ...