The repeated cycles of plate tectonics throughout history that led to collision, assembly and disruption of large supercontinents have produced modern continents that are collages of bits and pieces…

The largest earthquakes occur where oceanic plates move beneath continents. Obviously, water trapped in the boundary between both plates has a dominant influence on the earthquake rupture process.…

In the television show "Cosmos", the writers and host Neil deGrasse Tyson implied that the atmosphere on Venus was due to a runaway greenhouse gas effect. They also said Giordano Bruno was a martyr…

It's difficult to be certain yet but, based on information obtained on the Voyager and Galileo missions, scientists suspect that inside Europa, one of the icy moons of Jupiter, there exist…

The break-up of the supercontinent Gondwana about 130 Million years ago could have led to a completely different shape of the African and South American continent - with an ocean south of today's…

Magma sitting 4-5 kilometers beneath the surface of Oregon's Mount Hood has been stored in near-solid conditions for thousands of years but that doesn't mean it won't change rapidly.  The time…

Zircon crystals from Western Australia's Jack Hills region crystallized 4.4 billion years ago, building on earlier studies that used lead isotopes to date Australian zircons and identify them as the…

The U.S. Geological Survey has gone cosmic and produced the first global geological map of Ganymede, Jupiter's largest moon and the largest in the solar system. The geologists combined images…

Earth's largest mass extinction occurred some 252 million years ago, wiping out more than 96 percent of marine species and 70 percent of life on land, including the largest insects known to have…

Lorena Moscardelli of Statoil North America–Research, Development and Innovation in Austin is not the first to claim evidence to support the existence of a Martian ocean during the late Hesperian–…