Do you know about that !!

LIGHT YEAR:- A measure of the distance light trevels in one year,equal to 9.5x10^12 km.

ASTEROID:- Fragment of matter similar planetary matter that orbits between Mars and Jupiter.

COMET:- A mass of frozen gases,cosmic dust,and small rock particales that orbit in sun.

METEOROID:- Small fragments of matter moving in space that vaporize upon entering Earth's atmosphere..


H Umar.