In Oman, on the Persian Gulf, there is a large slab of ancient seafloor—including ultramafic rocks from Earth's upper mantle—called the Samail Ophiolite. These unique rocks not only provide valuable information about ...
Earth Sciences
Apr 27, 2022
0
385
Antarctic sea-ice has expanded over the period of continuous satellite monitoring, which seemingly contradicts ongoing global warming resulting from increasing concentrations of greenhouse gasses. In a study, published in ...
Environment
Apr 22, 2022
38
208
Suppose that we could watch twenty generations of whales or sharks adapting to climate change—measuring how they evolve and how their biology changes as temperatures and carbon dioxide levels rise. That could tell us a ...
Plants & Animals
Mar 21, 2022
0
102
The Atlantic Ocean was born roughly 200 million years ago when the supercontinent Pangea began to break apart. As continental crust stretched and fractured, oceanic crust took its place. To investigate this rifting process, ...
Earth Sciences
Jan 25, 2022
2
835
Carbon dioxide (CO2) levels today are higher than at any point in the past 800,000 years or more.
Earth Sciences
Jan 7, 2022
2
52
Earthquakes of similar magnitude can cause tsunamis of greatly varying sizes. This commonly observed, but not well-understood phenomenon has hindered reliable warnings of local tsunamis.
Earth Sciences
Dec 17, 2021
1
300
In the summer months, sea ice from the Arctic drifts through Fram Strait into the Atlantic. Thanks to meltwater, a stable layer forms around the drifting ice atop the salty seawater, producing significant effects on biological ...
Environment
Dec 15, 2021
0
32
Since the tsunami that devastated coasts around the Indian Ocean in December 2004 and the Fukushima disaster in March 2011, people worldwide are aware that geological processes in the ocean can cause significant damage. From ...
Earth Sciences
Dec 1, 2021
0
46
The mid-ocean "twilight zone" holds the key to several tantalizing questions about the marine food web and carbon-sequestering capacity of the ocean. But studying this vast and remote area is extremely difficult. Many inhabitants ...
Plants & Animals
Nov 1, 2021
0
95
After a successful test run in May, a NASA campaign is deploying aircraft, a research vessel and several kinds of autonomous ocean robots to study small ocean whirlpools, eddies and currents.
Planetary Sciences
Oct 27, 2021
0
24
