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Earth's Sixth Mass Extinction
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| Topic: Origin & Evolution of Life |
03/06/11 |
| Summary: Earth may be on the brink of a mass extinction on the scale of the five global mass extinctions that have occurred during the past 540 million years. The researchers believe that a modern global mass extinction would be the result of climate change and human activities, but they also believe it is not to late to stop it. |
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Reviving 100-Year-Old Diatoms
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| Topic: Origin & Evolution of Life |
03/02/11 |
| Summary: Scientists have revived 100-year-old spores that had laid buried and inactive in sediments at the bottom of the sea. The study provides a glimpse into diatom communities that go back 40,000 generations. |
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Clay-Armored Bubbles may have Formed First Protocells
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| Topic: Origin & Evolution of Life |
02/22/11 |
| Summary: Scientists have demonstrated that semipermeable vesicles can form from inorganic clay. Such vesicles might have been perfect containers for the first primitive cells. |
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How Nature's Patterns Form
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| Topic: Origin & Evolution of Life |
02/20/11 |
| Summary: By studying how patterns arise in various systems, a mathematician may show how biological forms are controlled by the laws of physics and not just evolution. The research could provide new information about the history of life on Earth. |
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Not All Dinos Died at Once
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| Topic: Origin & Evolution of Life |
02/18/11 |
| Summary: Researchers have discovered a fossilized dinosaur bone that raises questions about the theory that the age of dinosaurs ended between 65.5 and 66 million years ago. The discovery could change our understanding of the timeline of life's evolution on Earth. |
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Solar-Powered Hornets
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| Topic: Origin & Evolution of Life |
02/12/11 |
| Summary: Scientists have demonstrated how a member of the animal kingdom is able to convert the Sun's energy into electric power. The discovery highlights a previously unknown connection between the Sun and life on Earth, and shows yet another unique way in which organisms can adapt to survive in their natural environments. |
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DigiMorph: Bringing Fossils to Life
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| Topic: Origin & Evolution of Life |
02/10/11 |
| Summary: A new technique is helping scientists view precious fossils and share them with researchers all over the world. The technology could aid astrobiologists in their work to understand life's origin, evolution and history on Earth. |
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The Astrobiology of Cancer
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| Topic: Origin & Evolution of Life |
02/09/11 |
| Summary: Scientists may have an explanation for cancer's uncanny ability to evade our bodies' defenses. Cancer cells deploy many tricks to survive - tricks that rely on genetic pathways dating back billions of years to the time of the first multicellular life. |
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Unexpected Exoskeleton Remnants
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| Topic: Origin & Evolution of Life |
02/08/11 |
| Summary: Scientists have discovered that organisms evolved to use chitin as a structural component of their bodies much earlier than previously thought. The study included astrobiologists, and can help us understand the history and evolution of life on Earth. |
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