Snowball's chance in Earth and early signs of life
New research led by the University of St Andrews helps answer one of the most asked questions in geoscience, when did Earth start to become habitable to complex life?
New research led by the University of St Andrews helps answer one of the most asked questions in geoscience, when did Earth start to become habitable to complex life?
Earth Sciences
Jun 2, 2020
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176
If we took a journey from Earth's surface to the center, the midway point is roughly at 1900 km depth in the lower mantle. The lower mantle ranges from 660 to 2900 km depth and occupies 55% of our planet by volume. The chemical ...
Earth Sciences
May 22, 2020
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11
Earth may have been far more oxygen-rich early in its history than previously thought, setting the stage for the evolution of complex life, according to new research by scientists at the University of Alberta and the University ...
Earth Sciences
May 12, 2020
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3034
As new and more powerful telescopes blink on in the next few years, astronomers will be able to aim the megascopes at nearby exoplanets, peering into their atmospheres to decipher their composition and to seek signs of extraterrestrial ...
Astronomy
May 5, 2020
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478
Researchers have just published a theory of what powers the celestial phenomenon known as STEVE, the aurora-like glow amateur sky-watchers brought to scientists' attention in 2016.
Earth Sciences
Apr 8, 2020
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114
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
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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
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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
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588
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
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9
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
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794