Earth Science

The Gaia Theory: Its Origins & Implications

The Gaia Theory was the result of collaboration between the British scientist, James Lovelock, and the American biologist, Lynn Margulis. They proposed the Gaia "hypothesis" in their 1974 paper entitled Atmospheric homeostasis by and for the biosphere: the Gaia...

The Gaia Theory: Its Origins & Implications

The Gaia Theory was the result of collaboration between the British scientist, James Lovelock, and the American biologist, Lynn Margulis. They proposed the Gaia "hypothesis" in their 1974 paper entitled Atmospheric homeostasis by and for the biosphere: the Gaia...

The Gaia Theory: Implications for Science Teaching

I returned this week from a two week trip to Texas, and waiting for me in the mail was a book I had pre-ordered from Amazon.  The title of the book is James Lovelock: In Search of Gaia, and it was written by John Gribbin & Mary Gribbin.  Here's what the book is...

Space Shuttle Discovery Launched!

I am watching the countdown of STS 119, the October 15, 2009 launch of the Space Shuttle, Discovery. I started this post at T minus 6 minutes and counting, and continued watching until Discovery reached orbit.  It's always amazing whenever we launch the Space Shuttle....

Asteroid 2009 DD45 Comes Close to Earth: A Teaching Opportunity

Australian astronomers noticed a surprise blip on an image taken from Siding Spring Observatory, and announced that an asteroid, designated 2009 DD45 would pass about 40,000 miles from Earth on March 2.   It did, and it was reported on most news services.  And it...

Volcano in Your Backyard

Volcanoes have received a bad rap recently, especially if the US Geological Survey is to receive "stimulus" funding to monitor and investigate volcanoes. According to the Governor of Louisiana funding "something called 'volcano monitoring' is an example of...

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