An earthquake generates a series of seismic waves that travel through the interior or near the surface of the Earth. There are four types of seismic waves. How will three identically engineered ...

The earliest scientists first observed the waves that earthquakes produce before they could accurately describe the nature of earthquakes or their fundamental causes, as discussed in Lessons 1–5.

Geophysics has shown that precise measurements and a little modeling can perform wonders, like showing us the detailed structure of the Earth’s interior despite the fact that it is inaccessibly buried ...

Understanding what’s inside of a planet is like trying to figure out what’s inside of a gift without unwrapping it. But because we can’t simply tear open a planet, instead, we must rely on secondary ...

Mars has had its first CT scan, thanks to analyses of seismic waves picked up by NASA’s InSight lander. Diagnosis: The Red Planet’s core is at least partially liquid, as some previous studies had ...

An array of seismic sensors deployed to capture aftershocks from the 2018 magnitude 7.1 Anchorage earthquake also collected distinctive signals from hundreds of flights crossing over Alaska. In their ...