Giant regions of the mantle where seismic waves slow down may have formed from subducted ocean crust, a new study finds.

Are subterranean lifeforms viable on Mars? A new interpretation of Martian seismic data by scientists Ikuo Katayama of Hiroshima University and Yuya Akamatsu of Research Institute for Marine ...

Researchers examining seismic data recorded on Mars say the have found evidence supporting the presence of liquid water deep ...

The mantle of the Earth, up to 1,800 miles (2,900 kms) thick and 84% of the Earth's volume, was assumed to be a simple ...

The significant financial perils of drilling an unsuccessful well on dry land are only magnified when the unprofitable well is drilled in several thousand feet of water. Rig costs alone can top ...

The Mars water debate continues. A team of scientists suggests vast oceans of water may not be locked within the Red Planet's ...

A seismometer is an instrument that records the shaking of the Earth's surface caused by seismic waves. The term seismograph usually refers to the combined seismometer and recording device. The first ...

Magnitude Scale: The Richter scale is commonly used to quantify the magnitude of earthquakes. A 1.8-magnitude quake is considered minor, typically causing little to no damage. For instance, while a ...

Research published late last year indicated “seismic discontinuities in the Martian crust” that scientists believe could be an indicator of liquid water under the Martian surface, raising the ...

Researchers have found new evidence for a massive subsurface ocean on Mars, highlighting the possibility of microbial life ...

A new interpretation of Martian seismic ... the surface of Mars. "If liquid water exists on Mars," Katayama says, "the presence of microbial activity" is possible. For example, S-waves cannot ...