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 ...

The stars are surrounded by diffraction spikes, which are the starburst-like radiating lines that appear around bright objects on telescope images. The stars follow a nine-year orbit and are ...

Scientists have always been curious about the atmosphere surrounding us, but in the past, they could not just hop on a spaceship to see what was up there. Instead, scientists hiked up high ...

Spectacular new images from NASA's James Webb Space Telescope gave astronomers a detailed, never-before-seen ... about 1,500 light-years from Earth, NASA said in a news release.