Why are less massive stars thought to age more slowly than more ...

[jrubin]

Why are less massive stars thought to age more slowly than more massive stars despite the fact they have much less fuel?
 
  What will be an ideal response?

Question 2

List the steps thought to be involved in the evolution of Sun-like stars.
 
  What will be an ideal response?

[momolu]

Answer to Question 1

Hot, massive blue stars radiate energy at such an enormous rate that they substantially deplete their hydrogen fuel much more quickly than smaller main sequence stars. You could compare them to cars. A Hummer uses up its enormous fuel reservoir very quickly, whereas a Smart car uses up its comparably tiny fuel reservoir very slowly.

Answer to Question 2

Cloud of dust and gas (nebula)  protostar  main sequence star  red giant  planetary nebula  white dwarf.

[jrubin]

Excellent

[coreycathey]

Gracias!