The miles-wide asteroid that struck Earth 66 million years ago wiped out nearly all the dinosaurs and roughly three-quarters of the planet's plant and animal species.
Earth Sciences
Oct 4, 2022
0
414
What will be the impact to the ocean if humans are to mine the deep sea? It's a question that's gaining urgency as interest in marine minerals has grown.
Earth Sciences
Sep 21, 2022
0
204
Many scientists say that liquid water is a key to understanding the behavior of the frozen form found in glaciers. Melt water is known to lubricate their gravelly bases and hasten their march toward the sea. In recent years, ...
Earth Sciences
May 5, 2022
0
162
Saturn's moon Titan looks very much like Earth from space, with rivers, lakes, and seas filled by rain tumbling through a thick atmosphere. While these landscapes may look familiar, they are composed of materials that are ...
Astronomy
Apr 25, 2022
0
619
A massive release of greenhouse gases, likely triggered by volcanic activity, caused a period of extreme global warming known as the Paleocene-Eocene Thermal Maximum (PETM) about 56 million years ago. A new study now confirms ...
Earth Sciences
Mar 16, 2022
27
113
Since the discovery of the deep subseafloor biosphere in the mid-1990s, scientists have studied the conditions under which organisms thrive in this isolated and generally food-deprived environment and wondered which conditions ...
Ecology
Jan 25, 2022
1
276
NASA's Curiosity rover landed on Mars on Aug. 6, 2012, and since then has roamed Gale Crater taking samples and sending the results back home for researchers to interpret. Analysis of carbon isotopes in sediment samples taken ...
Planetary Sciences
Jan 17, 2022
8
793
Speciation and sedimentation are driven by tectonic activity, which causes fossil and rock records to share common patterns through time. During the Miocene, the Basin and Range (BR) of western North America arose through ...
A University of Arizona-led effort to reconstruct Earth's climate since the last ice age, about 24,000 years ago, highlights the main drivers of climate change and how far out of bounds human activity has pushed the climate ...
Earth Sciences
Nov 10, 2021
51
1087
The remains of microscopic plankton blooms in near-shore ocean environments slowly sink to the seafloor, setting off processes that forever alter an important record of Earth's history, according to research from geoscientists, ...
Earth Sciences
Jul 21, 2021
1
326
