The ionosphere—the region of geospace spanning from 60 to 1000 kilometers above the Earth—impairs the propagation of radio signals from global navigation satellite systems (GNSS) with its electrically charged particles. ...
Planetary Sciences
Apr 24, 2023
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243
The country of Turkey is still reeling from a 7.8 and a 7.5 magnitude earthquake and thousands of aftershocks that occurred in February, causing widespread destruction to infrastructure and human life. To aid response and ...
Earth Sciences
Mar 29, 2023
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1
The final installment of the sixth assessment report by the United Nations' Intergovernmental Panel on Climate Change (IPCC) was released on March 20. The report warns that the planet has already warmed 1.1°C above pre-industrial ...
Earth Sciences
Mar 21, 2023
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4
When do we define a piece of nature in the city as a park? And when is something a tree or shrub? It may seem obvious, but in scientific literature the definitions vary quite a bit. That makes comparisons difficult. Environmental ...
Environment
Mar 17, 2023
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41
Europe's Galileo is the world's most precise satellite navigation system, providing meter-level accuracy and very precise timing to its four billion users. An essential ingredient to ensure this stays the case are the atomic ...
Planetary Sciences
Mar 13, 2023
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5
The NISAR Earth science mission has moved a step closer to its 2024 launch. Its science payload of two radar systems, one built by NASA and the other by the Indian Space Research Organization (ISRO), recently completed the ...
Earth Sciences
Mar 8, 2023
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4
There is a mystery in our solar system surrounding the orbits of Kuiper belt objects. More than one trillion icy objects smaller than our moon orbit the sun in a donut-shaped ring beyond Neptune. Oddly, a cluster of outer ...
Land subsidence is a phenomenon wherein the Earth's surface sinks downwards. It occurs mainly due to human activities, such as excessive groundwater extraction. It is a major global concern, affecting 19% of the world's population. ...
Earth Sciences
Feb 21, 2023
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18
In 2015, when NASA's New Horizons spacecraft encountered the Pluto-Charon system, the Southwest Research Institute-led science team discovered interesting, geologically active objects instead of the inert icy orbs previously ...
Astronomy
Feb 7, 2023
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652
New research from the University of Washington shows that signals from the upper atmosphere could improve tsunami forecasting, and someday, help track ash plumes and other impacts after a volcanic eruption.
Earth Sciences
Dec 12, 2022
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