Kasha Patel

For the first time in the International Space Station's history, NASA said it was cutting short a crew mission after an astronaut “experienced a medical situation.”

If you head to Georgia, you will find sprawling southern live oak trees older than the Declaration of Independence. Often adorned in Spanish moss, the evergreen mammoths are featured in

Across the United States, wildfire activity has hit historic levels this spring and is likely to worsen in the coming months, experts say.

(CNN) — In southern Georgia, fast-moving flames destroyed a record number of homes; across the Plains in Nebraska, the largest fire in state history

Scientists have discovered that pigeons may use iron-rich immune cells in their livers as a kind of internal compass.

Record stress along the San Andreas and San Jacinto faults could trigger a major earthquake around Los Angeles.

(CNN) — It's like a scene from a Hollywood movie: A major earthquake along the San Andreas fault ripples through Los Angeles, decimating infrastructure, sparking fires and triggering landslides. For decades, scientists have been investigating when and how this disaster could unfold.

(CNN) — It's like a scene from a Hollywood movie: A major earthquake along the San Andreas fault ripples through Los Angeles, decimating infrastructure, sparking fires and triggering landslides.

On Wednesday evening, Venezuela was hit with its largest tremors in more than a century — toppling buildings and claiming more than 100 lives.