The "secret city" was abandoned by the Americans in 1967 as the US and Russia sought to gain whatever advantage over one ...

"We were looking for the bed of the ice and out pops Camp Century," NASA cryospheric scientist Alex Gardner said.

The seasonal sea-ice is in long-term decline and the ice sheet that sits atop Greenland is losing mass at a rate of about 280 billion tonnes a year. So, if you choose to make a map of the region ...