In their search for life in solar systems near and far, researchers have often accepted the presence of oxygen in a planet's atmosphere as the surest sign that life may be present there. A new Johns Hopkins study, however, ...
Astronomy
Dec 17, 2018
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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
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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
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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
Like our oceans, today's continents are brimming with life. Yet billions of years ago, before the advent of plants, continents would have appeared barren. These apparently vacant land forms were believed to play no role in ...
Earth Sciences
Jun 29, 2018
0
71
Global climate change, fueled by skyrocketing levels of atmospheric carbon dioxide, is siphoning oxygen from today's oceans at an alarming pace—so fast that scientists aren't entirely sure how the planet will respond.
Earth Sciences
Jun 11, 2018
6
318
Researchers in the Department of Earth Sciences at Syracuse University have confirmed that rising oceanic and atmospheric oxygen levels co-evolved with marine life hundreds of millions of years ago.
Earth Sciences
May 31, 2018
0
208
Dozens of potentially habitable planets have been discovered outside our solar system, and many more are awaiting detection.
Astronomy
May 9, 2018
8
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