Permafrost underlies about 14 million square kilometers of land in and around the Arctic. The top 3 meters contain an estimated 1 trillion metric tons of carbon and 55 billion metric tons of nitrogen. Historically, the northern ...
Earth Sciences
13 hours ago
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23
There is a vast menagerie of potentially habitable worlds in the cosmos, which means the universe could be home to a diversity of life beyond what we can imagine. Creatures built on silicon rather than carbon, or organisms ...
Astrobiology
Jan 23, 2024
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24
Scientists at MIT, the University of Birmingham, and elsewhere say that astronomers' best chance of finding liquid water, and even life on other planets, is to look for the absence, rather than the presence, of a chemical ...
Astronomy
Dec 29, 2023
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235
As astronomers have begun to gather data on the atmospheres of planets, we're learning about their compositions and evolution. Thick atmospheres are the easiest to study, but these same thick atmospheres can hide the surface ...
Planetary Sciences
Dec 27, 2023
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42
Through our burning of fossil fuels and other activities, we humans have raised atmospheric carbon dioxide (CO₂) concentrations more than 40 percent in the last 150 years. This increase in CO₂, and in another greenhouse ...
Earth Sciences
Dec 11, 2023
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19
The Orion Nebula is a favorite among stargazers. It's a giant stellar nebula out of which, hot young stars are forming. Telescopically to the eye it appears as a gray/green haze of wonderment but cameras reveal the true glory ...
Astronomy
Nov 27, 2023
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46
NISAR will help researchers explore how changes in Earth's forest and wetland ecosystems are affecting the global carbon cycle and influencing climate change.
Earth Sciences
Oct 27, 2023
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1
In a large-scale study with almost 400 partners, researchers worldwide have collected data on tree species, to which scientists from Bayreuth have contributed their knowledge about the Kilimanjaro region. The study, which ...
Ecology
Oct 24, 2023
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110
Reducing CO2 levels in the atmosphere will take more than cutting emissions—we will also need to capture and store the excessive volumes of already-emitted carbon. In an opinion paper published in the journal Trends in ...
Plants & Animals
Sep 21, 2023
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71
An international research team led by Dr. Guo Donglin from the Institute of Atmospheric Physics of the Chinese Academy of Sciences has revealed the extent of near-surface (about 3–4 m depth) permafrost during the mid-Pliocene ...
Earth Sciences
Aug 29, 2023
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