Is there still hope for "dead" Ison comet? However there's still some hope the comet survived and could be visible in the coming days, the European Space Agency suggested on Friday through Twitter. Latest photos from the SOHO observatory show some parts of the comet have gone through the Sun's corona while experts consider that it's too early to say if the comet really "survived." NASA: Comet ISON Fizzles NASA: Lasco C3 Views Comet ISON