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Researchers call it one of the "last frontiers of human colonization": very high elevations where the oxygen is sparse and the temperatures are icy.

Archaeologists have discovered an early medieval church on the remote Holy Island of Lindisfarne that could be linked to key figures in the history of British Christianity.

You probably thought ducks were cute waddlers who liked to eat your stale bread.

It's a tough world out there, a new report on the emotional well-being of people worldwide shows.

Faroe Islanders have turned the sea red after slaughtering hundreds of whales as part of a centuries-old hunt, which has been criticized by animal rights groups.

Today is Asteroid Day, when colleges, museums and observatories across the globe are striving to raise awareness about the wonders and potential dangers of asteroids.

As NASA makes plans to one day send humans to Mars, one of the key technical gaps the agency is working to fill is how to provide enough power on the Red Planet’s surface for fuel production, habitats and other equipment.

It's shiny. It’s sharp. It’s on Mars. It must be aliens! What appears to be a chunk of metal photographed by the Opportunity Rover has UFO buffs in a spin.

A time capsule was recovered Thursday from the controversial Confederate Memorial at Forest Park.

Paul Sutter is an astrophysicist at The Ohio State University and the chief scientist at COSI Science Center .

A team of zoologists filmed a group of mallard ducks attacking and eating other birds in Romania.

Archaeologists say that human skulls may have once decorated an ancient temple at Göbekli Tepe in Turkey.

Scientists have engineered reptile skin in the lab. From the skin, which belongs to the endangered green turtle, the scientists grew a devastating virus with the hopes to better understand and fight the disease in the species.

Just because air pollution falls below legal limits does not mean you're safe.

Robotic pincers inspired by geckos could help collect garbage in space , a new study finds.

While Mars has water ice beneath its surface, extracting the liquid for future human missions will be a challenge.

The incredible image shows where lava behave like liquid water on the surface of Mars.

The Curiosity Mars Rover is now smart enough to pick its own targets for exploration, according to a new study.

Liquid water comes in two forms — low density and high density, scientists have found.

Asteroids are one of the most serious threats to life as we know it, but scientists and skywatchers have gotten pretty good at predicting exactly when and where the dangerous rocks will appear, and how close they're going to come to our planet.