Reference Terms
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Sediment
Sediment is any particulate matter that can be transported by fluid flow and which eventually is deposited as a layer of solid particles on the bed or bottom of a body of water or other liquid. Sedimentation is the deposition by settling of a suspended material.
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Earth & Climate News
August 19, 2025
Aug. 19, 2025 Scientists found that Great Salt Lake’s chemistry and water balance were stable for thousands of years, until human settlement. Irrigation and farming in the 1800s and a railroad causeway in 1959 ...
Aug. 18, 2025 NASA-backed simulations reveal that meltwater from Greenland’s Jakobshavn Glacier lifts deep-ocean nutrients to the surface, sparking large summer blooms of phytoplankton that feed the Arctic food ...
Aug. 18, 2025 NASA and ISRO s NISAR satellite has just reached a major milestone: the successful deployment of its enormous 39-foot antenna reflector in orbit. Folded up like an umbrella during launch, the reflector is now fully extended and ready to support ...
Aug. 18, 2025 With its two tiny CubeSats, NASA’s PREFIRE mission is capturing invisible heat escaping from Earth, offering clues to how ice, clouds, and storms influence the climate system. The insights could lead to better weather forecasts and a deeper ...
Aug. 17, 2025 Roughly two-thirds of all atmospheric methane, a potent greenhouse gas, comes from methanogens. Tracking down which methanogens in which environment produce methane with a specific isotope signature is difficult, however. UC Berkeley researchers ...
Aug. 17, 2025 Rising CO₂ levels will make the upper atmosphere colder and thinner, altering how geomagnetic storms impact satellites. Future storms could cause sharper density spikes despite lower overall density, increasing drag-related ...
Aug. 17, 2025 When a massive 8.8 magnitude earthquake struck off Russia’s Kamchatka Peninsula, NASA and CNES’s SWOT satellite captured a rare and detailed picture of the tsunami that followed. Recorded just ...
Aug. 16, 2025 Mediterranean bryozoans, including the “false coral,” are showing alarming changes in structure and microbiomes under acidification and warming. Field studies at volcanic CO₂ vents reveal that these stressors combined sharply reduce survival, ...
Aug. 16, 2025 A new study reveals that an earthquake early warning system, similar to the USGS ShakeAlert used in California, Oregon, and Washington, could give Alaskan communities precious seconds to prepare before strong shaking hits. Modeling shows that towns ...
Aug. 16, 2025 Chemical evidence from a stalagmite in Mexico has revealed that the Classic Maya civilization’s decline coincided with repeated severe wet-season droughts, including one that lasted 13 years. These ...
Aug. 15, 2025 In a Puerto Rican coffee farm, researchers uncovered a web of chaotic interactions between three ant species and a predator fly, revealing how shifting dominance patterns make pest management unpredictable. By combining theories of cyclic dominance ...
Aug. 14, 2025 Beneath the North Sea, scientists have uncovered colossal sand formations, dubbed “sinkites,” that have mysteriously sunk into lighter sediments, flipping the usual geological order. Formed millions of years ago by ancient earthquakes or ...
Latest Headlines
updated 12:56 pm ET
Aug. 18, 2025 The massive 2025 Myanmar earthquake revealed that strike slip faults can behave in surprising ways. Using satellite data, Caltech researchers found the Sagaing Fault ruptured more dramatically than ...
Aug. 15, 2025 A curious red Martian rock nicknamed Sapphire Canyon has scientists excited, as its spotted appearance hints at possible organic origins. On Earth, researchers tested a powerful laser technique, ...
Aug. 14, 2025 Extreme heat waves and cold spells on the Great Lakes have more than doubled since the late 1990s, coinciding with a major El Niño event. Using advanced ocean-style modeling adapted for the lakes, ...
Aug. 14, 2025 Over 15 years of fossil excavations in Tanzania and Zambia have revealed a vivid portrait of life before Earth s most devastating mass extinction 252 ...
Aug. 13, 2025 Advanced computer modeling suggests that by 2080, waves driven by sea level rise could flood Ahu Tongariki and up to 51 cultural treasures on Rapa Nui. The findings emphasize the urgent need for ...
Aug. 13, 2025 Amid growing concerns over plastic waste and microplastics, researchers are turning agricultural leftovers into biodegradable packaging. Using ...
Aug. 9, 2025 Over 300 million years ago, Illinois teemed with life in tropical swamps and seas, now preserved at the famous Mazon Creek fossil site. Researchers ...
Aug. 9, 2025 Scientists used machine learning to reveal how glaciers erode the land at varying speeds, shaped by climate, geology, and heat. The findings help guide global planning from environmental management ...
Aug. 9, 2025 Deep beneath the Antarctic seas lies a hidden network of 332 colossal submarine canyons, some plunging over 4,000 meters, revealed in unprecedented detail by new high-resolution mapping. These ...
Aug. 8, 2025 A new study suggests Alaska could get 10–120 seconds of warning before major quakes, with more seismic stations adding up to 15 extra seconds. ...