prasath

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USGS Landsat Data Yield Best View to Date of Global Forest Losses, Gains

The ravages of deforestation, wildfires, windstorms and insects on global forests during this century are revealed in unprecedented detail in a new …

Landsat

How Is Ground Coffee Like a Planet? Just Add Zero Gravity.

A long time ago — 4.56 billion years ago, give or take an eon or two — the Earth upon which you currently live wasn’t here. Well, not all in one …

Oops: How Fast Will Comet ISON Really Be Moving?

Well, dangit. I screwed up.<p>This happens sometimes. What makes this one frustrating is that it’s one of those mistakes where I should’ve known what I …

Sciences et Avenir

Sciences et Avenir