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Signs of Life

Signs of life were located in an unusual rock formation in what is now a desolate part of the Arctic. The site, on Akilia Island in West Greenland, is known to be 3.85 billion years old - the oldest known collection of rocks on Earth!

The Earth is thought to be about 4.6 billion years old, and this ground-breaking discovery pushed the age of the oldest known life on the planet back almost 400 million years from what was previously known.

But don't get too excited. The form of life discovered there was likely just a simple micro-organism, although its actual shape or nature can't be determined. Over time (a whole LOT of time), heat and pressure have destroyed its original structure - which was likely just a "blob" even then.

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Library: Land, Countries/Places, Arctic
Did Trees Cover Greenland?
Links: Ice Age, Arctic
Arctic Maps & Weather Reports


Double-click any unlinked word DICTIONARY: Just "double-click" any unlinked word on this page for the definition from Merriam-Webster's Student Electronic Dictionary at Word Central.
Arctic Library ARCTIC LIBRARY & GLOSSARY: Check this section for an index of the rest of the things you really need to know about the Arctic.
All sorts of Arctic Maps ARCTIC MAPS & WEATHER REPORTS: Maps of the Northwest Passage, explorers' routes, iceberg sources, Nunavut, the Arctic by treeline, temperature...
Links to related sites. ARCTIC LINKS: Even more information! Links to sites related to the Arctic and "Iceberg: the Story of the Throps and the Squallhoots".
A Guide to Arctic Sunrise and Sunset GUIDE TO ARCTIC SUNRISE & SUNSET: How much sunlight or darkness is there in the Arctic on each day of the year?

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