Geologists Provide New Evidence for Reason Behind Rise of Life in Cambrian Period December 07, 2006 | User rating: 4.4 / 5 after 41 vote(s)
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Geologists have uncovered evidence in the oil fields of Oman that explains how Earth could suddenly have changed 540 million years ago to favor the evolution of the single-celled life forms to the multicellular forms we know ... | |
 Researchers find new information about Earth's origins October 05, 2006 | User rating: 4.3 / 5 after 66 vote(s)
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Two Dartmouth researchers have learned more about the origins and makeup of the solar nebula, the large gaseous cloud thought to have spawned the solar system. Mukul Sharma, assistant professor of Earth sciences, ... | |
 Planet Earth may have 'tilted' to keep its balance August 25, 2006 | User rating: 4.5 / 5 after 79 vote(s)
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Imagine a shift in the Earth so profound that it could force our entire planet to spin on its side after a few million years, tilting it so far that Alaska would sit at the equator. Princeton scientists have ... | |
 65-million-year-old asteroid impact triggered a global hail of carbon beads May 05, 2008 | User rating: 4.5 / 5 after 40 vote(s)
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The asteroid presumed to have wiped out the dinosaurs struck the Earth with such force that carbon deep in the Earth's crust liquefied, rocketed skyward, and formed tiny airborne beads that blanketed the planet, ... | |
 Geochemists challenge key theory regarding Earth's formation May 01, 2008 | User rating: 4.3 / 5 after 33 vote(s)
| User comments: 3
Working with colleagues from NASA, a Florida State University researcher has published a paper that calls into question three decades of conventional wisdom regarding some of the physical processes that helped ... | |
 Titan's surface organics surpass oil reserves on Earth February 13, 2008 | User rating: 4.7 / 5 after 84 vote(s)
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Saturn’s orange moon Titan has hundreds of times more liquid hydrocarbons than all the known oil and natural gas reserves on Earth, according to new Cassini data. The hydrocarbons rain from the sky, collecting ... | |
 Evolution tied to Earth movement December 19, 2007 | User rating: 4.4 / 5 after 32 vote(s)
| User comments: 1
Scientists long have focused on how climate and vegetation allowed human ancestors to evolve in Africa. Now, University of Utah geologists are calling renewed attention to the idea that ground movements formed ... | |
 Tropical forests: Earth's air conditioner April 10, 2007 | User rating: 4.5 / 5 after 23 vote(s)
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How effective are new trees in offsetting the carbon footprint? A new study suggests that the location of the new trees is an important factor when considering such carbon offset projects. Planting and preserving ... | |
 New evidence puts 'Snowball Earth' theory out in the cold March 23, 2007 | User rating: 4.4 / 5 after 41 vote(s)
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The theory that Earth once underwent a prolonged time of extreme global freezing has been dealt a blow by new evidence that periods of warmth occurred during this so-called 'Snowball Earth' era. | |
 Scientists explain source of mysterious tremors emanating from fault zones March 14, 2007 | User rating: 4.8 / 5 after 22 vote(s)
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Tiny tremors and temblors recently discovered in fault zones from California to Japan are generated by slow-moving earthquakes that may foreshadow catastrophic seismic events, according to scientists at Stanford ... | |
 Study shows largest North America climate change in 65 million years February 07, 2007 | User rating: 4.2 / 5 after 41 vote(s)
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The largest climate change in central North America since the age of the dinosaurs 65 million years ago, a temperature drop of nearly 15 degrees Fahrenheit, is documented within the fossilized teeth of horses ... | |
New findings blow a decade of assumptions out of the water January 10, 2007 | User rating: 4 / 5 after 24 vote(s)
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The Atlantic Ocean doesn't receive the mother lode of fixed nitrogen, the building block of life, after all. Instead, comparing fathom for fathom, the Pacific and Indian oceans experience twice the amount of nitrogen fixing ... | |
A bumpy shift from ice house to greenhouse January 04, 2007 | User rating: 4.5 / 5 after 34 vote(s)
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The transition from an ice age to an ice-free planet 300 million years ago was highly unstable, marked by dips and rises in carbon dioxide, extreme swings in climate and drastic effects on tropical vegetation, according to ... | |
 Researchers identify a 'heartbeat' in Earth's climate December 21, 2006 | User rating: 4.2 / 5 after 77 vote(s)
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A few years ago, an international team of researchers went to the middle of the Pacific Ocean and drilled down five kilometers below sea level in an effort to uncover secrets about the earth's climate history. ... | |
 Tidal motion influences Antarctic ice sheet December 20, 2006 | User rating: 4.1 / 5 after 9 vote(s)
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New research into the way the Antarctic ice sheet adds ice to the ocean reveals that tidal motion influences the flow of the one of the biggest ice streams draining the West Antarctic Ice Sheet. | |
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