Components of the Solar System - Page 21

Questions

How would you describe the formation of our Sun from nebula to main sequence?
What forms from the left over materials from the formation of a star?
Rank from the largest to the smallest: constellation, galaxy and solar system?
If an asteroid is heading towards the Earth from behind the Sun, will we be able to detect it?
How do you distinguish between a meteoroid, meteor, and meteorite?
What is a triple star system?
Why does a comet's tail always stream away from the sun?