Geo-Joint: Lake Vostok

Lake Vostok

At a depth of over two miles, liquid Lake Vostok has sat unseen for perhaps 35 million years.

Geo-Joint: Volcano Surfing

Volcano surfing

A wooden sled sheathed with a metal bottom is the vehicle of choice. At the back end on the bottom, a one-use sheet of plastic is attached, and by leaning back and pulling on the rope attached to the front of the sled, you can reduce your contact point to nothing but this slick surface, achieving speeds of 50 to 60 mph!

Geo-Joint: Freshwater Sharks

Freshwater Sharks

Sharks have fairly salty interiors so they are at home in the ocean. Even the ones that dine on small fish prefer to keep to the ocean and avoid freshwater.

Geo-Joint: The Antikythera Mechanism

Antikythera Mechanism

In 1900, sponge divers off the Greek island of Antikythera found a strange clockwork-like mechanism made of bronze in the wreck of an ancient ship.

Geo-Joint: New Year’s Day

New Year's

There are scores of different New Years observations and celebrations around the world – this is but a very short list.

Geo-Joint: The North Pole

North Pole

The North Pole may seem remote to us nowadays, but back before anyone had been there, it might as well have been on the moon.

Geo-Joint: Glacier National Park

Glacier National Park

Unlike the melting of the tundra in faraway Alaska, Glacier National Park is a highly visible and closer-to-home example that our world is changing rapidly.

Geo-Joint: A Trip to the Middle of Nowhere

A long time ago, Timbuktu was pretty far from anything else. It still is. Timbuktu is in Mali, Africa, and while there are scattered towns at some distance to the south, to the north is the vast emptiness of the Sahara Desert.

Geo-Joint: Deep-Sea Mining

Deep-Sea Mining

Deepsea drilling rigs poke holes in the sediment under the ocean to find oil and gas, but there is another trove of treasure that has long been known, and only recently targeted.

Geo-Joint: The Aral Sea

Aral Sea

The towns that once made their living from the sea have gone away, their fishing boats left high and dry, now miles from the shoreline.