Our sun will become a red giant star
In roughly five billion years, our Sun will swell into a colossal red giant, potentially engulfing inner planets and forever reshaping our solar system.
In about five billion years, our Sun will dramatically transform. As it runs out of hydrogen fuel, its core will heat up, causing the outer layers to expand outward. This turns our familiar star into a red giant, hundreds of times brighter and much larger than it is today.
There's more to this story — open the app to keep reading.
Continue Reading in App
1 more paragraphs · plus a 3-question quiz