Space nebula looks like your actual eye
Turns out the universe has a peeper and it's looking right at you
There is a giant blue and gold eye staring back at…
What created the Helix Nebula's dramatic, expanding eye-like shape?
- Turns out the universe has a peeper and it's looking right at you
- This "Eye of God" presents a vibrant, albeit fleeting, portrait of stellar demise.
- The Helix Nebula offers a profound, if melancholic, premonition of our own star's eventual fate.
Seven hundred light-years from Earth, nestled within the constellation Aquarius, a cosmic gaze holds steady. This is the Helix Nebula, NGC 7293, a celestial structure so profoundly symmetrical it mirrors an ocular orb.
This "Eye of God" presents a vibrant, albeit fleeting, portrait of stellar demise. The intense ultraviolet radiation from the nebula's central white dwarf star - the former core of a sun-like star - strips electrons from the expelled gas, causing it to fluoresce. The resulting ring-like structure is not a solid sphere, but rather a shell of ejected material, expanding into the void. Its appearance as an eye is a trick of perspective; we view it largely pole-on, through a transparent, expanding bubble of gas and dust.
The Helix Nebula offers a profound, if melancholic, premonition of our own star's eventual fate. In roughly five billion years, our Sun will similarly shed its outer layers, contracting into a white dwarf and illuminating a brief, ethereal planetary nebula.
The Helix Nebula spans about 2.5 light-years across.
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