Even if Earth does survive, it won’t be pretty. The temperature of our planet will be about 1,300 degrees C, hot enough to ...

How far away it is: 93 million miles (150 million km) ...

Very massive stars are cosmic "rock stars" that live fast, die young and leave black holes in their place. During this ...

This will cause the outer layers of the Sun to expand dramatically, transforming it into a "red giant." During this phase, the Sun will swell to immense proportions, engulfing Mercury and Venus.

Scientists hope to bring this technology to even larger telescopes, including the 4-meter Daniel K. Inouye Solar Telescope in Hawaiʻi, promising an even closer look at the sun's outer layers.

An international team, led by Instituto de Astrofísica e Ciências do Espaço (IA) researcher Ângela Santos, has made the first ...

The outer layers that swell during the red-giant phase will become a shell of gas called a surrounding planetary nebula. This shell will be shed after approximately 1 billion years.