Asked in Science
How a lowdensity cloud of hydrogen in space becomes a star?
August 01, 2011 4:26PM
Gravity causes the hydrogen molecules to gather together, this causes a strong gravitation pull towards the centre mass, more hydrogen atoms are attracted. Eventually a protostar is formed. As the mass of the protostar increases, the temperature and pressure at the centre increases. When the temperature reaches 10 million degrees Kelvin fusion starts and a star is born.