Great Discoveries Channel: Sci, Space, Tech
In Episode Seven, The Clean Room, Neil deGrasse Tyson starts our journey traveling to the shallow seas that formed what we now know as the Grand Canyon a billion years ago in what then was the Precambrian Epoch to find the only kind of life on the planet: blue-green bacteria. Oxygen, one of the by-products of photosynthesis by microbes such as cyanobacteria and their descendants -including algae and higher plants, transformed the Precambrian Earth and made possible the evolution of more complex organisms. Continue reading "'Cosmos: A Spacetime Odyssey' (Sunday's Episode 7) --Preview & Background for "The Clean Room"" » Continue reading "Kepler-Mission Update -- NASA's Scientists' Insights on Discovery of 1st Earth-Sized Planet in Habitable Zone" » Five years ago today, on March 6, 2009, NASA's Kepler Space Telescope rocketed into the night skies to find planets around other stars within a field of view 1/400th the size of the Milky Way in search of potentially habitable worlds.
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