French scientists have determined more that 5,000 tons of extraterrestrial dust particles reach earth every year. It comes from asteroids or comets. This is the main source of extraterrestrial matter on our planet, far ahead of larger objects such as meteorites, for which the flux is less than ten tons per year.
Every year, our planet encounters dust from comets and asteroid. These interplanetary dust particles pass through our atmosphere and give rise to shooting stars. Some of them rea...
