15 Mind-Blowing Pictures Of Space

This delicate red bubble, floating around 160,000 light-years from Earth is the remnant of a massive stellar explosion, a shock wave from a supernova.

The bubble measures around 23 lightyears across and is expanding at a rate of over 11 million miles per hour with the continued force of the explosion.

This image was taken by Hubble's Advanced Camera for Surveys using a filter that isolates the red glowing light of the hydrogen shell and was composited together with a visible-light image of the surrounding star field in which the bubble sits.

This kind of remnant is what is left over after a massive star explodes, a fate that our own sun is far too small to ever meet. Our sun is more likely to simply expand into a red giant and slowly fade away.