Scientists at Stanford University have discovered a surprising shift in the Arctic Ocean. Exploding blooms of phytoplankton, the tiny algae at the base of a food web topped by whales and polar bears, have drastically altered ...
Earth Sciences
Jul 9, 2020
28
5819
Researchers have discovered a sea's worth of water locked within the sediment and rock of a lost volcanic plateau that's now deep in the Earth's crust. Revealed by a 3D seismic image, the water lies two miles under the ocean ...
Earth Sciences
Oct 8, 2023
0
524
An atmospheric scientist with Colorado State University has gained confirmation of his discovery of a bioluminescent "milky sea" event through testimony of a crew aboard a private yacht. In his paper published in Proceedings ...
A study led by Western astrobiologist Catherine Neish shows the subsurface ocean of Titan—the largest moon of Saturn—is most likely a non-habitable environment, meaning any hope of finding life in the icy world is dead ...
Astrobiology
Feb 14, 2024
10
6024
New research provides the first direct evidence for the Gulf Stream blender effect, identifying a new mechanism of mixing water across the swift-moving current. The results have important implications for weather, climate ...
Earth Sciences
Jul 6, 2020
0
3829
Sea-level rise may appear to be a problem only for coastal residents, a hazard that comes with the awesome views and easy access to the beach.
Environment
Sep 6, 2021
48
1259
The Arctic has experienced the warming effects of global climate change faster than any other region on the planet. Scientists at the Scripps Institution of Oceanography have developed a new theory aided by computer simulations ...
Environment
Feb 25, 2020
43
929
In a new survey of the sub-seafloor off the U.S. Northeast coast, scientists have made a surprising discovery: a gigantic aquifer of relatively fresh water trapped in porous sediments lying below the salty ocean. It appears ...
Earth Sciences
Jun 21, 2019
3
18
The search for extraterrestrial life has just become more interesting as a team of scientists, including Southwest Research Institute's Dr. Christopher Glein, has discovered new evidence for a key building block for life ...
Astrobiology
Sep 19, 2022
2
823
Researchers have discovered the missing piece of the puzzle behind a rare opening in the sea ice around Antarctica, which was nearly twice the size of Wales and occurred during the winters of 2016 and 2017.
Earth Sciences
May 1, 2024
1
266
Seawater is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of about 3.5%. This means that every 1 kg of seawater has approximately 35 grams of dissolved salts (mostly, but not entirely, the ions of sodium chloride: Na+, Cl-). The average density of seawater at the surface of the ocean is 1.025 g/ml; seawater is denser than freshwater (which reaches a maximum density of 1.000 g/ml at a temperature of 4°C) because of the added mass of the salts. The freezing point of sea water decreases with increasing salinity and is about -2°C (28.4°F) at 35 gram per liter.
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