What on Earth?
6.4Returning SeriesDocumentary

What on Earth?

Satellites orbit Earth at 17,000 miles an hour, capturing images of our world that are breathtaking, but some are bizarre. This unique perspective reveals objects that seem to make no sense & phenomena that defy explanation. Such images force the question, what on Earth is that?

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1. Finding Vietnam's Lost POWs

Finding Vietnam's Lost POWs
0.0Jan 26, 2016 · 44 min

Evidence of human activity is found in strange times and places, and a new perspective on a biological activity known since the nineteenth century.