It is estimated that the sun formed into a star about 4.57 billion years ago.
About 5 billion years
About 5 billion.
5 billion years
It really is burning out, but there is so much gas in it that it will really burn out after about ten billion years.
Nothing that you will notice in your lifetime . In millions of years, the sun , being a star will first expand , burning up the earth and then reduce and burn out.
in millions to billians of years
[THEORY] Scientist believe that the sun will stop burning and turn into a black hole in 5 billion years.
Helium. It was discovered on the Sun many years before it was discovered on Earth.
About 5 billion years
About 5 billion
The sun is not actually burning as in a fire on earth, Burning is a chemical reaction that releases heat. The sun is a nuclear reaction. However most scientists estimate that the sun will continue to react brightly for another five billion years or so.
The sun has been burning for about 4.6 billion years and is currently halfway through its life cycle. It is estimated to continue burning for another 5 billion years before it exhausts its nuclear fuel and transitions into a red giant.