Since the mid-20th century, research and discussion has focused on the negative effects of excess nitrogen on terrestrial and aquatic ecosystems. However, new evidence indicates that the world is now experiencing a dual trajectory ...
Environment
Apr 14, 2022
4
152
The Axiom-1 mission to send four private astronauts to the International Space Station is the first of many missions planned by NASA to expand the ISS for commercial use as part of what's being called the low-Earth orbit ...
Space Exploration
Apr 11, 2022
3
18
In 1952, Stanley Miller and Harold Urey made sparks fly in a gas-filled flask meant to reflect the composition of Earth's atmosphere around 3.8 billion years ago. Their results suggested that lightning could have led to prebiotic ...
Earth Sciences
Apr 11, 2022
2
106
For the second year running, US scientists observed record increases in the atmospheric concentration of the potent greenhouse gas methane, the National Oceanic and Atmospheric Administration (NOAA) said Thursday.
Environment
Apr 7, 2022
9
170
For the first time, researchers have spotted short-term, regional fluctuations in atmospheric carbon dioxide (CO2) around the globe due to emissions from human activities.
Planetary Sciences
Apr 1, 2022
16
353
Virginia Tech researchers, in collaboration with Pacific Northwest National Laboratory, have discovered that key parts of the global carbon cycle used to track movement of carbon dioxide in the environment are not correct, ...
Environment
Apr 1, 2022
102
259
If life is abundant in the universe, atmospheric methane may be the first sign of life beyond Earth detectable by astronomers. Although nonbiological processes can generate methane, a new study by scientists at UC Santa Cruz ...
Astrobiology
Mar 28, 2022
1
731
From the ancient sludge of lakebeds in Asia's Tibetan Plateau, scientists can decipher a vision of Earth's future. That future, it turns out, will look very similar to the mid-Pliocene warm period—an epoch 3.3 million to ...
Earth Sciences
Mar 14, 2022
0
176
The increase in emissions of greenhouse gases into the atmosphere is only one of several serious global threats to our continued existence on Earth, and their reduction is at the core of international agreements like the ...
Earth Sciences
Mar 11, 2022
36
98
In recent decades, planetary scientists have developed ample evidence indicating that Mars was home to a relatively thick atmosphere and hosted liquid water on its surface during the Noachian, around 4 billion years ago. ...
Astronomy
Feb 8, 2022
1
50
