reaches
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Earth
Thermodynamic model determines how gold reaches the earth’s surface
Credit: Proceedings of the National Academy of Sciences (2024). DOI: 10.1073/pnas.2404731121 A research team including scientists from the University of Michigan has discovered a new gold-sulfur complex that can help researchers understand how gold deposits form. Gold in deposits associated with volcanoes around the Pacific Ring of Fire originates from the Earth’s mantle and is transported to the surface by…
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Space & Cosmos
The sun reaches its maximum in the 11-year solar cycle
Images from NASA’s Solar Dynamics Observatory highlight what the Sun looks like during solar minimum (left, December 2019) and solar maximum (right, May 2024). These images are at 171 wavelengths of extreme ultraviolet light and reveal active regions of the Sun that are commonly seen during solar maxima. Credit: NASA/SDO Representatives from NASA, the National Oceanic and Atmospheric Administration (NOAA),…
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Earth
Arctic ozone reaches record high in positive step for climate
Modeling representation of Arctic ozone hole recovery in 2024. Credit: Michala Garrison, NASA Earth Observatory. The Earth’s ozone hole in polar regions, where stratospheric ozone levels have been significantly reduced, has been featured frequently in climate change news in recent decades. Anthropogenic chlorofluorocarbons (CFCs) are the main culprit and are emitted by household products such as refrigerators, air conditioners, and…
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