From 9-foot tall ostriches to albatrosses with gargantuan wingspans, here are some of the biggest birds in the world.

The thick, mineral-rich layers of clay found on Mars suggest that the Red Planet harbored potentially life-hosting ...

Australian microbe research is helping improve our understanding of the potential for life in extreme environments, offering ...

Micrometeorites raining down from space may have provided the perfect surfaces for the first primitive cells to form on Earth ...

Each year in the U.S., an estimated 6.1 million people are treated for skin cancer, and that number is growing.

Our planet has been asteroid-smashed, melted and eroded, enough that most of its original armor has been long buried. Except ...

Even if Earth does survive, it won’t be pretty. The temperature of our planet will be about 1,300 degrees C, hot enough to ...

What if Venus became Earth's moon? Explore how our planet would change if Earth’s twin, a planet almost the same size and ...

Most meteorites that have reached Earth come from the asteroid belt between Mars and Jupiter. But we have 1,000 or so ...

The landscape is stark, dark and dramatic, formed by a series of eruptions in the last 16,000 years that have stacked layer ...

Essentially, gas pistoning is a shallow, degassing-driven rise and fall of a lava surface. Often these pistons occur in ...

In the Afar Depression of East Africa, a remarkable geological transformation is unfolding, with scientists revealing that ...