comet

night after night seemed mengores a long streaks the sky, that comet!
for thousands of years every munju comet in the sky, comet is a family like the sun and planets, asteroids, comets sometimes a point close to the earth so it seemed a long streaks of glowing in the night sky, astronomers believe, the comet is a ball -ball of frozen gases mixed with rock and metal, comets can have tails when they came near the sun, at that moment the sun's heat melt some frozen gas and rock while the metal flowing in a space that forms the tail, the tail is glowing because metals and rocks reflected the sunlight
comet's head approximately 16 kilometers in diameter, surrounded by clouds of gas and 1.6 million kilometers in width and tail length could reach 160 million miles!