"This earliest period of star growth lasts a mere thousands of years, an astonishingly short amount of time in astronomical terms, given that stars typically live for millions or billions of year."
This is because there is no pulling force or curving space at all!
Stars born when zillions expanding particle pushing out from galaxy centre expanding supermassive concentration and some outside expanding movement /energy get this zillions expanding particle expanding extremely fast same time!
Now this area centre is huge pressure with out pulling force and thats the way born new expanding stars with out pulling force!
All nucleus of atoms expanding all a time and same time expanding nucleus of atoms recycling expanding movement / energy with eachother!
Onesimpleprinciple com
EternalRecycling
Read more at:*
http://phys.org/news/2015-01-stars-dark-cloud-obscures-hundreds.html#jCp
EternalLove