Part I of the Polar Nexus Series: Reconstructing the ancient world that existed long before recorded history and left its fingerprints on every early civilization.
A long-debated platinum spike in Greenland ice is best explained by volcanic activity rather than a cosmic impact, reshaping ideas about what triggered the Younger Dryas cooling. An unusual platinum ...
NASA’s 1986 Challenger mission was intended to inspire students to consider a future in space. The crew’s family is ...
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