剧情简介
CometISONcouldwellbethebrightestandmostspectacularcometforageneration.ItshouldappearabovetheeasternhorizonfromDecember2013asagloriousstreakacrossthesky.ISONhasbeentravellingtowardsthesunfortenthousandyearsandwillmakeonlyoneorbitthroughitscoronabeforedisappearingoffintotheoutersolarsystem. Butaswellasprovidingagreat...
