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Icebergs with colored strips are amazing creations.

Blue stripes are often created when a crevice in the ice sheet fills up with meltwater and freezes so quickly that no bubbles form.

When an iceberg falls into the sea, a layer of salty seawater can freeze to the underside. If this is rich in algae, it can form a green stripe.

Brown, black and yellow lines are caused by sediment, picked up when the ice sheet grinds downhill towards the sea.

The Milky Way Map has been revised!

Norma and Sagittarius have been demoted to minor arms.

New Milky Way Map Created; Shows Fewer Main Arms

For the

via National Geographic News on 6/2/08

A new view of our home galaxy shows what its structure would look like to distant observers, including the demotion of two of it swirling arms to minor status.