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.

Satellites captured an image of black holes in the desert. What are they? We’ll give you a hint: 18.

While searching for a village destroyed after Word War Two, satellite images spot a strange shadow. Some initially believe it’s a person.

This giant crack in Mexico seems to have appeared overnight. The cause may have something to do with the way farmers obtain water.

With the balls, LA will save 300 million gallons of water a year.

Near a mystical spot in Peru, scientists examine an enormous mandala. Initially it looks like many other large scale drawings in the area, but something is a bit off. To this day, no one knows who made it.

Emperor penguins have left giant skid marks on the ice in Antarctica.

Plants appear to be arranging themselves into strange patterns. Why is this?

The ice swept in slowly, but powerfully. It’s called an ice shove.

As a satellite passed over Western China, it spotted a strange set of red rows. What is causing this color change?

While orbiting over the Canadian wilderness, a satellite spotted this worm like structure. They’re massive piles or rock and gravel.

Biologist and adventurer Rob Nelson explains how satellites allow us to explore the world in a whole new way.

When miners begin digging out new areas, they often find fossils that have never been seen by humanity.

This desert in China is covered with lakes. Some are salty, while others are fresh. Why doesn’t the water simply evaporate?

If it’s not a rock or an island, what is it?

In the 1950’s this strange shape was spotted in Cuba. No, it’s not a Star of David.

Analysis reveled that they were probably made around 800 bce.