can be linked to the dynamo mechanism operating inside the sun," co-author Zsolt Kővári explained in a statement. "The large-amplitude variations in the brightness of the red giant XX Tri have ...

Effectively, the Sun as we know it will have died. When that happens, the Sun will become a red giant. It will stop creating heat via nuclear fusion. NASA says the core will become unstable and ...

Stars like our sun fuse hydrogen in their cores into helium ... At this stage, the star becomes a large red giant. Because a red giant is so large, its heat spreads out and the surface ...