POSTED: 01:45 a.m. HST, Nov 28, 2013
LAST UPDATED: 07:55 a.m. HST, Nov 28, 2013
STOCKHOLM >> It's crunch time for a comet from the fringes of the solar system as it hurtles toward a close encounter with the sizzling sun.
Comet ISON is expected to get closest to the sun at 8:37 a.m. Hawaii time today.
At that point it will be only about 1 million miles away from the sun's surface.
Scientists say it probably won't be visible from Earth except via fleet of NASA telescopes and spacecraft. But if ISON survives -- and it will be a few hours before that's known -- and returns past Earth, astronomers say it should be easily visible in the Northern Hemisphere early next month, just before sunrise and after sunset.