The "music" of starquakes—enormous vibrations caused by bursting bubbles of gas that ripple throughout the bodies of many ...

Because a red giant is so large ... giants are hot enough to turn the helium at their core, which was made by fusing hydrogen, into heavy elements like carbon. But most stars are not massive ...

It grows in size as the hydrogen fusion moves to the outer layers. This expanded star is known as a red giant, which appears as an orange color. According to NASA, our sun is destined to become a ...

The galaxy was once nothing but a vast cloud of hydrogen, a little helium and lithium ... The most famous is to puff up to become a red giant. Based on color alone, red giants or supergiants ...

Starquakes in stars from cluster M67 reveal hidden pauses that mark major internal changes. These pauses improve how we estimate star ages.

Betelgeuse is the shoulder of Orion, a red giant sitting about 500 light ... it's all chaos. Sometimes it's fusing hydrogen, sometimes it's fusing helium, sometimes it will shut down for a while ...