The eagerly anticipated comet could be 15 times brighter than the moon, with a massive tail, making it visible even in broad daylight.
A new image of the sun-bound Comet shows that it is still in one piece, despite fears from experts that its icy nucleus might disintegrate as the sun warms it.
Some astronomers had predicted that Comet ISON could break apart before November 28 when it is predicted to travel just 730,000 miles from the surface of the sun.
In July, experts had claimed that ISON was fizzling out and astronomer Ignacio Ferrin, of the University of Antioquia in Colombia, said: 'The future of comet ISON does not look bright,[."]
But Nasa's Hubble Space Telescope has taken the image that will make sky watchers hopeful for a sighting of a lifetime, as ISON has been decribed as the 'comet of the century'.