NASA says Earth is in the clear from asteroid 2024 YR4, which previously had a small chance of hitting our planet in 2032. Freelance writer Amanda C. Kooser covers gadgets and tech news with a ...

The chances has more than doubled in a matter of weeks, officials said. The chances of an asteroid striking Earth within the next decade has more than doubled in a matter of weeks, according to ...

The Earth's interior is composed of four layers, three solid and one liquid—not magma but molten metal, nearly as hot as the surface of the sun. The deepest layer is a solid iron ball ...