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The words
Scientists have worked [out / in] when our Sun will die. It won't be any time soon. It will be [at / in] 10 billion years. The scientists are from the University of Manchester in the UK. They [predict / prediction] that in about 5 billion years from now, the Sun will turn [into / onto] a "red giant". This is the scientific name [given / gave] to a star at the end of its life. When our Sun becomes a red giant, its centre will [stink / shrink] . Its outer layers will expand as far [has / as] Mars. This means Earth will be burnt and disappear. After our Sun turns into a red giant, it will become a planetary nebula. This is a [trouble / bubble] of gas and space dust. The scientists say [not / no] humans will be on Earth when the Sun dies out. Humans will disappear in around one billion years from [then / now] .

The Sun is still [quite / quit] young in space years. It is just 4.6 billion years old. This means it is only around one [third / thirds] into its lifespan. Professor Albert Zijlstra, a scientist from the University of Manchester, explained [that / what] happens at the end of a star's life. He said: "When a star [deaths / dies] , it ejects a mass of gas and [dust / dusty] into space....This [reveals / rebels] the star's [corn / core] . By this point in the star's life, it is running [out / in] of fuel." He said it eventually turns off and dies. Professor Zijlstra was happy that modern science can calculate the [age / old] of stars and what will happen to them. He said we can measure the presence of stars in [distant / distance] galaxies, and "we even have found out what the Sun will do when it dies".

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