According to NASA, the star system consists of a white dwarf and red giant. The stars are close enough that, as the red giant ...

After one such explosion blows a star's outer layers into space, the core remains—but it no longer produces nuclear fusion. With no outward pressure from fusion to counterbalance gravity's ...

The red colour is from nitrogen ... glimpse of how the symbiotic star Mira HM Sge will look like in outer space. The symbiotic star can be found nearly 3,400 light-years away in the constellation ...

The Serpens Nebula is a prime location for studying the formation of stars and planets. It is approximately 1,300 light-years from Earth.

burning the last of its hydrogen and causing the star's outer layers to expand outward. At this stage, the star becomes a large red giant. Because a red giant is so large, its heat spreads out and ...