Tuesday, 2 July 2013

Studying Life From 1 Billion Years Ago And Messaging To Extraterrestrial Intelligence
Welcome! "Alien Life" tracks the latest discoveries and thoughts in the various elements of the famous Drake Equation. Here's today's news:

g ABODES - Scientists have discovered seawater preserved in oceanic plates that could be 1 billion years old. See article.

g LIFE - Three and a half billion years ago our planet was quite different and Earth's earliest biosphere was dominated by microbial communities - complex multicellular organisms were not to evolve for quite some time, only arriving on the scene about 600 million years ago. Those early ecosystems resulted in the formation of luxuriant microbial mats with a variety of morphologies which are seen today in the stromatolitic fossil record scattered around the globe. One of these morphologies was simply large cones, sometimes reaching heights of 2 meters. See article.

g MESSAGE - We've all heard of SETI, but what about METI - "Messaging to Extraterrestrial Intelligence," or sending both scientific and artistic messages to the stars? See article.

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