It is slowly expanding. In about 5 billion years, the sun will enter the red giant phase. During this phase, it switches from burning hydrogen in the core to burning hydrogen around the core ...

or whether life could survive the red giant phase. "As the sun becomes a red giant, the habitable zone will move to around Jupiter and Saturn's orbit, and many of these moons will become ocean ...

According to astronomers from UC Berkeley, long before Earth gets swallowed, the sun’s heat will turn oceans into steam, making life unsustainable. If Earth survives the red giant phase ...

Example: Still, the sun is slowly getting brighter and hotter, and it will eventually enter the red giant phase. Semicolons can combine two complete sentences (without a conjunction) when the ...

The Sun is at this stable phase in its life. When all the hydrogen has been used up in the fusion process, larger nuclei begin to form and the star may expand to become a red giant. When all the ...