Though it may seem like a new topic of concern, the glaciated landscape of Greenland has floated in and out of American politics for decades.

The idea of an open polar sea haunted the imaginations of European explorers and scientists alike in the nineteenth century.

The “Moho,” short for the Mohorovičić discontinuity, is a long way down.

And what does the early modern search for the answer to this question tell us about the “scientific method” we colloquially accept today?

Since the 1950s, scientists have been proposing supernovae as catalysts for mass extinctions. But can it be proven?

Brazil's oldest natural history museum has burned down. The institution played a crucial part in creating Brazil's identity as a country.