But gold is a dense metal that originates in Earth’s mantle, far beneath the surface. So how does it manage to rise up to form gold deposits on the surface? That question has long vexed scientists, ...

On York Boulevard in Los Angeles, a blurred black hole hangs on a dark wall, joined only by a pair of headphones playing ...

Earth is now closer to the sun than at any other time of the year. Here's why our planet's axial tilt, not proximity to the ...

What Is a Magnetosphere? A magnetosphere is the region surrounding a planet that is dominated by its magnetic field. While ...

Yellowstone has hosted "supereruptions" — the most explosive type of volcanic blast that would be regionally devastating, and ...