Eye appeal versus grade has long been one of the hobby’s classic debates. A PSA 7 may sound exceptional, but what if a PSA 4 simply looks better? If the prices are close, which card is truly worth ...
Since its launch in February 2013, Landsat 8 has collected about 400 scenes of the Earth’s surface per day. Each of these scenes covers an area of about 185 by 185 kilometers (115 by 115 miles)—34,200 ...
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