Details into how most of the crust that covers the planet formed are now emerging from new 3-D X-ray images of melted rock. More than 60 percent of the Earth's surface formed at volcanoes on deep ...

Picture the Earth’s crust and you most probably think of dense, dry rock. You don’t imagine a goey, honey-like substance trickling down into the planet’s deep underbelly. And yet ...

Venus, often written off as a geologically dead world, is far more active beneath its blistering surface than previously thought, according to new research.

The closeup view of Europa revealed incredible details of the moon’s chaotic terrain, which suggest that its icy crust is not where it used to be. The images also showed a newly discovered ...