Mars often feels finished. Mapped, scanned, labelled in broad strokes. Yet every so often, something unsettles that sense of familiarity. A shadow where none was expected. A shape that does not fit ...
CHEYENNE, Wyo. (AP) — Paleontologists digging at the bottom of a strange cave in northern Wyoming say they have uncovered a trove of animal bones from the last ice age this summer and have enough ...
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