Chemical changes in the oceans more than 800 million years ago almost destroyed the oxygen-rich atmosphere that paved the way for complex life on Earth, new research suggests.
Earth Sciences
Mar 2, 2020
0
85
Enzymes with flavin cofactor play an important part in plants, fungi, bacteria and animals: as oxygenases they incorporate oxygen into organic compounds. For instance this allows people to excrete foreign substances more ...
Biochemistry
Feb 18, 2020
0
8
Scientists have determined the structure of the protein complex that gives cyanobacteria their unique ability to convert weak, filtered sunlight into useable energy. Their findings could one day be used to engineer crops ...
Cell & Microbiology
Feb 5, 2020
1
588
Tiny meteorites no larger than grains of sand hold new clues about the atmosphere on ancient Earth, according to scientists.
Earth Sciences
Jan 30, 2020
2
794
The oxygen in the air that we breathe is O2. Two oxygen atoms joined together to form a diatomic molecule. It is essential to life. However, there is another form of oxygen where three oxygen atoms join together to make an ...
Environment
Jan 30, 2020
0
9
Working together with space researchers, Finnish amateur photographers have discovered a new auroral form. Named "dunes" by the hobbyists, the phenomenon is believed to be caused by waves of oxygen atoms glowing due to a ...
Space Exploration
Jan 29, 2020
3
196
Mars is losing water more quickly than theory and observations would suggest. The gradual disappearance of water (H2O) occurs in the upper atmosphere of Mars as sunlight and chemistry disassociate water molecules into hydrogen ...
Space Exploration
Jan 9, 2020
0
16
Scientists have developed a new method for detecting oxygen in exoplanet atmospheres that may accelerate the search for life.
Astronomy
Jan 6, 2020
1
1145
Despite bearing witness to its own increase in Earth's atmosphere by around 2.5 to 2.3 billion years ago, oxygen has had relatively little to say about its own early history until now. A recent EU-funded study provides a ...
Earth Sciences
Nov 1, 2019
0
21
Planets that are even a little like Earth are hard to find. That's why when astronomers like Jennifer G. Winters come across a body that may be solid, rocky, and possibly have its own atmosphere, they get excited. And especially ...
Astronomy
Oct 24, 2019
4
134
