Over the past week, the US has realized and revealed that an active fleet of Chinese spy balloons has been operating across the northern hemisphere for several years.
Political science
Feb 14, 2023
0
7
There is currently less sea ice in the Antarctic than at any time in the forty years since the beginning of satellite observation: in early February 2023, only 2.20 million square kilometers of the Southern Ocean were covered ...
Earth Sciences
Feb 10, 2023
0
222
Forests have important roles in the global water and biogeochemical cycles. Climate change has led to worldwide changes in forest distributions, especially in the mid-latitude regions. As one of the most important forest ...
Earth Sciences
Feb 10, 2023
0
28
New images of Saturn from NASA's Hubble Space Telescope herald the start of the planet's "spoke season" surrounding its equinox, when enigmatic features appear across its rings. The cause of the spokes, as well as their seasonal ...
Astronomy
Feb 9, 2023
0
224
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
0
652
The Latest Permian Mass Extinction (LPME) was the largest extinction in Earth's history to date, killing between 80–90% of life on the planet, though finding definitive evidence for what caused the dramatic changes in climate ...
Earth Sciences
Jan 26, 2023
4
257
Previous studies have found that phase changes in the sea surface temperature (SST) of the North Pacific can modulate the variations in the stratospheric polar vortex (SPV) in the Arctic, which is a circulation of winds high ...
Earth Sciences
Jan 24, 2023
0
14
Until recently, the southern part of South America was believed to be the main source of the dust that lands in Antarctica. Fine particles, or aerosols, are often carried long distances by atmospheric circulation. This dust ...
Earth Sciences
Jan 20, 2023
0
32
Alhue and Mailen were born in captivity but conservationists hope to free the chicks soon as part of a project to boost Chile's ailing population of Andean condors.
Plants & Animals
Jan 18, 2023
0
12
Cambridge researchers have developed a new test that "fishes" for multiple respiratory viruses at once using single strands of DNA as bait and gives highly accurate results in under an hour.
Bio & Medicine
Jan 16, 2023
0
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