Researchers believe they have closed the case of what killed the dinosaurs, definitively linking their extinction with an asteroid that slammed into Earth 66 million years ago by finding a key piece of evidence: asteroid dust inside the impact crater. Death by asteroid rather than by a series of volcanic eruptions or some other global… Continue Reading Asteroid Dust Found in Crater Closes Case of Dinosaur Extinction
Researchers Trace Geologic Origins of Gulf of Mexico ‘Super Basin’ Success
The Gulf of Mexico holds huge untapped offshore oil deposits that could help power the U.S. for decades. The energy super basin’s longevity, whose giant offshore fields have reliably supplied consumers with oil and gas since the 1960s, is the result of a remarkable geologic past – a story that began 200 million years ago… Continue Reading Researchers Trace Geologic Origins of Gulf of Mexico ‘Super Basin’ Success
Greenland ‘Knickpoints’ Could Stall Spread of Glacial Thinning
The jagged terrain of Greenland’s mountains is protecting some of the island’s outlet glaciers from warm coastal waters, according to a team of researchers that included scientists from The University of Texas at Austin and NASA. Outlet glaciers protrude from the ice sheet into the sea, where surging ocean heat can speed up the loss… Continue Reading Greenland ‘Knickpoints’ Could Stall Spread of Glacial Thinning
Researchers Model Source of Eruption on Jupiter’s Moon Europa
A new model shows how brine on Jupiter’s moon Europa can migrate within the icy shell to form pockets of salty water that erupt to the surface when freezing. The findings, which are important for the upcoming Europa Clipper mission, may explain cryovolcanic eruptions across icy bodies in the solar system. On Jupiter’s icy moon… Continue Reading Researchers Model Source of Eruption on Jupiter’s Moon Europa
Arizona Rock Core Sheds Light on Triassic Dark Ages
A rock core from Petrified Forest National Park, Arizona, has given scientists a powerful new tool to understand how catastrophic events shaped Earth’s ecosystems before the rise of the dinosaurs. The quarter-mile-long core is from an important part of the Triassic Period when life on Earth endured a series of cataclysmic events: Our planet was… Continue Reading Arizona Rock Core Sheds Light on Triassic Dark Ages
- « Previous Page
- 1
- …
- 10
- 11
- 12
- 13
- 14
- …
- 19
- Next Page »