By analyzing seismic waves from earthquakes from the 1960s, researchers from Peking University deduced that the Earth's inner ...

The Radcliffe Wave is a massive, undulating structure filled with dense clouds of gas and dust, stretching across several ...

Seismic readings of the interior of Mars strongly suggest large quantities of water buried 6 to 12 miles underground.

For centuries, the true nature of the Moon’s core remained an open question. Was it entirely molten, like the early Earth, or ...