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The Geologic Age of Earth
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So far scientists have not found a way to decide the exact age of
Earth directly from Earth rocks because Earth's oldest rocks have
been recycled and destroyed by the process of plate tectonics. If
there are any of Earth's primordial rocks left in their original
state, they have not yet been found.
Nevertheless, scientists have been able to determine the probable
age of the Solar System and to calculate an age for the Earth by
...
Related newspaper, magazine, and journal articles from HighBeam Research
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It's a big, busy solar system.(TEACHER'S toolkit)
Science Scope
; ... Teachers of inquiry, rejoice! The National Aeronautics and Space Administration (NASA) is a great place to look for the latest news, statistics, and images. Three key pages to bookmark are the NASA Science Mission Directorate's Solar System Exploration web ...
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Astronomers discover Earthlike solar system
The Milwaukee Journal Sentinel
; ... smoothly "we're actually drowning in planets," Marcy said. Last week, team members had planned to announce 13 new planets at their news conference. They found two more over the weekend. The team plans to census the 2,000 stars within 150 light-years from Earth ...
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Jumping Jupiter! Is Our Solar System a Rarity?
The Washington Post
; ... for any possible habitable planet as we know it." That's "bad news" for those in search of extraterrestrial intelligence, said Marcy ... about 5 percent appear to have world-wrecking planets. "The good news is that 95 percent of the sun-like stars don't have these nemeses ...
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 "The Sunday Independent (South Africa)")
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Secrets of our solar system; A new generation of spacecraft is able to go further than ever before, revolutionising our understanding of Earth's nearestplanetary neighbours. David Whitehouse explores some of the extraordinary places they've shown us.(Dispatches)
The Sunday Independent (South Africa)
; The closer we look at the worlds that circle our Sun, the more spectacular and mysterious they become. As growing numbers of space probes have succeeded in travelling to faraway destinations, they have turned distant and mysterious points of light into alien landscapes dotted with unanswered
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The Formation of the Solar System
Journal of the Geological Society
; Abstract: The study of the origin and evolution of the Solar System is based on laboratory analysis of meteorites and other extraterrestrial materials, and on astronomical observations of star-forming regions today. A virtual consensus holds that the Solar System formed from the collapse of
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