The very earliest years of Earth have long been presumed hot, violent and terrible – so much so that the era from 4.5 billion years to 4 billion years ago is known as the Hadean Eon, or Hellish time. However, a four-year ...
May 6, 2005
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Earth's climate is being changed substantially by a buildup of atmospheric greenhouse gases, but a group of leading climate scientists contends the overall impact is not understood as well as it should be because data are ...
May 6, 2005
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In an experiment originally planned for the International Space Station, physicists at Duke University have devised a controlled, measurable method to make a container of granules -- in this case plastic beads -- "freeze" ...
May 6, 2005
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