Hidden secrets of 1491 world map revealed via multispectral imaging

Henricus Martellus, a German cartographer working in Florence in the late 15th century, produced a highly detailed map of the known world. According to experts, there is strong evidence that Christopher Columbus studied this ...

UNESCO report: Wreck off Haiti not 'Santa Maria'

A report from the U.N. cultural agency released Monday concludes that a shipwreck found off northern Haiti could not be the Santa Maria, the lost flagship from Christopher Columbus' first voyage to the Western Hemisphere, ...

Official: Wreck off Haiti likely not Columbus ship

(AP)—A shipwreck off the north coast of Haiti probably isn't a lost flagship of Christopher Columbus as a U.S. explorer has claimed, the country's culture minister says.

Tree rings reveal nightmare droughts in the West

If you think the 1930s drought that caused The Dust Bowl was rough, new research looking at tree rings in the Rocky Mountains has news for you: Things can get much worse in the West.

Satellite shelved after 2000 election to now fly

President Barack Obama is proposing dusting off and finally launching an old environmental satellite championed by Al Gore but shelved a dozen years by his 2000 rival George W. Bush.

Once-derided climate-change satellite may launch with new goal

An Earth observation satellite conceived by former Vice President Al Gore - but banished to a Maryland warehouse by foes of climate change after George W. Bush beat Gore for the presidency - could get a ride into space as ...

Skeletons point to Columbus voyage for syphilis origins

Skeletons don't lie. But sometimes they may mislead, as in the case of bones that reputedly showed evidence of syphilis in Europe and other parts of the Old World before Christopher Columbus made his historic voyage in 1492.

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