It’s make or break time for Comet c/2012 S1 (ISON), a ball of ice hurtling toward the inner solar system that will make its closest approach to the sun this month. Whether ISON will flare into...



-- Read more on ScientificAmerican.com




Source: Comet from the Oort Cloud Careens toward the Sun


David Cottle

UBB Owner & Administrator