Birth of a Star!
Birth of a Star!!!
The birth of a star happens in huge, cold clouds of gas called nebula. When a star begins to form, it turns to a dense cloud of gas in the arms of spiral galaxies. This process may continue for millions of years. When the temperature rises up to 20 million degrees Fahrenheit, the hydrogen in the star lights up and burns in a continuing series of nuclear reactions.
This marks a birth of a star!!!
This marks a birth of a star!!!
Death of a Star!
Death of a Star!!!
The death of a star happens in about a few billion years. This happens when the core runs out of hydrogen fuel. This process heats up the upper layer, and this causes the star to expand! When this happens, the radius of the star will increase and it will become a red giant. In the red giant, the core will become hot - hot enough to fuse the helium into carbon. This makes the red giant expand and become cool. Then it will form a planetary nebula. At the end it forms into a white dwarf then later a black dwarf. This marks the death of a star!!!