Scientists studying our planet have a pretty good idea of what goes on up here at the surface. Understanding what's going on deep underground or in the depths of the Earth's oceans is another matter ...

Back in 1977, Voyager 1, a deep space probe, was launched, and since then, the space probe has been traversing the stars, gathering and relaying information back to Earth. Voyager 1 is humanity's most ...

The global "hum" of the Earth is now helping scientists probe the planet's deep interior, a group of researchers say. Since this hum — called seismic noise, which is generated by sources such as storm ...