Thu, 12 Nov 2009 9:06a.m. An Australian scientist has described how he became the first person to spot a gigantic iceberg which is headed for New Zealand.
At 500 metres long, the iceberg is almost twice as long as the Titanic.
Biologist Dean Miller spotted it off Macquarie Island - halfway between Australia and Antarctica.
Experts say the iceberg could prove dangerous if it breaks up as it approaches warmer waters.
