According to this[1], you're off by a few billions years. The sun has enough hydrogen to burn for another 5 and a half billion years. After that, it has enough helium to burn for another billion years.
Yeah but the Earth will be unable to sustain itself during the end of the Sun's life. Maybe I should say the Earth has 2.4 billion years left, not the Sun.
Comments
According to this[1], you're off by a few billions years. The sun has enough hydrogen to burn for another 5 and a half billion years. After that, it has enough helium to burn for another billion years.
[1]http://en.wikipedia.org/wiki/Sun#After_core_hydrogen_exhaust...
Yes, but the sun is also getting hotter over time. This will push the habitable zone past Earth's orbit in somewhat less than two billion years[1].
[1]http://online.liebertpub.com/doi/abs/10.1089/ast.2012.0938
Yeah but the Earth will be unable to sustain itself during the end of the Sun's life. Maybe I should say the Earth has 2.4 billion years left, not the Sun.