To the surprise of many planetary scientists, the oxidized iron mineral hematite has been discovered at high latitudes on the Moon, according to a study published today in Science Advances led by Shuai Li, assistant researcher ...
Space Exploration
Sep 2, 2020
8
470
Oxygen first accumulated in the Earth's atmosphere about 2.4 billion years ago, during the Great Oxidation Event. A long-standing puzzle has been that geologic clues suggest early bacteria were photosynthesizing and pumping ...
Earth Sciences
Jun 9, 2020
3
524
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
7
478
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
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
The search for sustainable approaches to generating new fuels has brought scientists back to one of the most abundant materials on Earth—reddish iron oxide in the form of hematite, also known as rust.
Materials Science
Oct 21, 2019
1
587
Clues from Canadian rocks formed billions of year ago reveal a previously unknown loss of life even greater than that of the mass extinction of the dinosaurs 65 million years ago, when Earth lost nearly three-quarters of ...
Earth Sciences
Aug 29, 2019
5
1957
Extreme fluctuations in atmospheric oxygen levels corresponded with evolutionary surges and extinctions in animal biodiversity during the Cambrian explosion, finds new study led by UCL and the University of Leeds.
Earth Sciences
May 6, 2019
3
551
Early Earth was a hot, gaseous, dusty and dynamic planet with an atmosphere and an ocean. Then its surface cooled and stabilized enough for clouds, landmasses and early life to form about four billion years ago, during what's ...
Earth Sciences
Aug 7, 2018
0
212
Earth's oxygen levels rose and fell more than once hundreds of millions of years before the planetwide success of the Great Oxidation Event about 2.4 billion years ago, new research from the University of Washington shows.
Earth Sciences
Jul 9, 2018
1
169
