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
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
The enzyme-nitrogenase-can be traced back to the universal common ancestor of all cells more than four billion years ago.
Earth Sciences
Aug 22, 2019
0
65
The quest to discover what drove one of the most important evolutionary events in the history of life on Earth has taken a new, fascinating twist.
Earth Sciences
Jun 19, 2019
1
46
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
Scientists recreated deep sea conditions from the last ice age and found that the tropical Pacific contained more carbon and less oxygen during that period than previously thought.
Earth Sciences
Oct 18, 2018
1
58
A new study has produced a detailed estimation for when there was enough oxygen in the Earth's atmosphere to support large land-based life, such as dinosaurs and eventually humans.
Earth Sciences
Oct 8, 2018
0
40
A carbon cycle anomaly discovered in carbonate rocks of the Neoproterozoic Hüttenberg Formation of north-eastern Namibia follows a pattern similar to that found right after the Great Oxygenation Event, hinting at new evidence ...
Earth Sciences
Aug 31, 2018
1
131
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
