When a perfect triangle is found in the middle of a unpopulated portion of Australia, experts begin to wonder whether or not the design is man made.

Satellite photos show a strange circle beneath the ice of an ancient lake. Further analysis shows that these mysterious rings appear each year. What are they?

A satellite captures an image that uncovers the entrance to an underground complex. What is being built there?

Scientists are baffled when a seemingly huge tsunami headed straight for Hong Kong suddenly disappears in the water.

Sandy Island seems to have disappeared, and scientists aren't quite sure why. Was there some sort of elaborate government experiment?

Satellite images capture a distinct glowing object beneath the ocean's surface.

Satellite images reveal a strange hole in Antarctica. After scientists rule out whirlpools and sinkholes, they have to look back in time to find the answer.

A commercial satellite imager spots something strange in the middle of a vast desert. It looks like an airport runway, but there are no planes. No government claims ownership of this strange place.

Satellite images reveal enormous spirals in Peru. Some researchers say they are too perfect and too huge to be man made.

Ghost lakes have existed for millions of years, but they just recently started showing themselves. Geophysicist Helen Fricker explains how scientists are moving forward with this discovery.

For years the hottest place on Earth ever recorded was a city in Libya. When researchers took a second look at this information, they realized the measurement was wrong.

When you think of deserts, you don't typically think of bright, jewel tones. Why are these massive pools of color here?

Who drew this over 2 mile long humanoid figure into the Australian terrain?

Satellite images revealed hundreds of black holes in the middle of the desert near ancient burial grounds. Is grave robbing still a thing in modern day or were these holes caused by something else?

Satellites spotted a strange, long streak across the desert in Bolivia. At first, scientists thought it may be a skid mark from a meteor.

This isn’t an optical illusion. This lake on Middle Island is actually pink! You can thank the algae in the lake for the gorgeous color.

Remains of an ancient city, rumored to be haunted, litter the pacific island of Pohnpei.

When a perfect triangle is found in the middle of a unpopulated portion of Australia, experts begin to wonder whether or not the design is man made.

These Transylvanian burial mounds may be the resting place of Vlad Dracula, "The Impaler."

What could be the cause of this excessive gravitational pull? A volcano, or perhaps something else?

Satellite images reveal a strange hole in Antarctica. After scientists rule out whirlpools and sinkholes, they have to look back in time to find the answer.

Satellite photos show a strange circle beneath the ice of an ancient lake. Further analysis shows that these mysterious rings appear each year. What are they?

When the Quickbird Earth Observation Satellite spots an entire fleet of abandoned boats in the middle of the desert, researchers attempt to come up with an explanation.

The search for Nazi treasure leads to a secret underground bunker.

An image taken by GOME shows a strange, pulsing force spreading across North America. What on Earth is it?

A commercial satellite imager spots something strange in the middle of a vast desert. It looks like an airport runway, but there are no planes. No government claims ownership of this strange place.

Scientists are baffled when a seemingly huge tsunami headed straight for Hong Kong suddenly disappears in the water.

Experts investigate a river surrounded by death.

A mysterious shape in the water leads people to believe a giant monster is roaming Loch Ness. Is that really what’s going on though?

Ghost lakes have existed for millions of years, but they just recently started showing themselves. Geophysicist Helen Fricker explains how scientists are moving forward with this discovery.

A satellite captures an image that uncovers the entrance to an underground complex. What is being built there?

A military analyst notices a familiar military plane in the middle of a Chinese city. The question is, is the plane real or just a model?