(Phys.org) —A small team of researchers with the University of California has found a way break apart carbon dioxide molecules and get carbon atoms and oxygen molecules instead of carbon monoxide and an oxygen atom. In ...
The interiors of Uranus and Neptune each contain about 50 000 times the amount of water in Earth's oceans, and a form of water known as superionic water is believed to be stable at depths greater than about one-third of the ...
General Physics
Sep 23, 2021
0
1000
For the first time in the history of space exploration, scientists have measured the seasonal changes in the gases that fill the air directly above the surface of Gale Crater on Mars. As a result, they noticed something baffling: ...
Space Exploration
Nov 12, 2019
17
1089
Around 2.5 billion years ago, our planet experienced what was possibly the greatest change in its history: According to the geological record, molecular oxygen suddenly went from nonexistent to becoming freely available everywhere. ...
Evolution
Mar 1, 2021
0
2187
Scientists have found that molecular oxygen around comet 67P is not produced on its surface, as some suggested, but may be from its body.
Space Exploration
Jul 3, 2018
55
312
Today, 21 percent of the air we breathe is made up of molecular oxygen. But this gas was not always in such ample, life-sustaining supply, and in fact was largely absent from the atmosphere for the first 2 billion years of ...
Earth Sciences
May 16, 2016
0
1359
For the development of animals, nothing—with the exception of DNA—may be more important than oxygen in the atmosphere.
Earth Sciences
Jan 2, 2017
13
718
Science fiction stories are chock full of terraforming schemes and oxygen generators for a very good reason—we humans need molecular oxygen (O2) to breathe, and space is essentially devoid of it. Even on other planets with ...
Materials Science
May 24, 2019
2
1192
A typical human cell is metabolically active, roaring with chemical reactions that convert nutrients into energy and useful products that sustain life. These reactions also create reactive oxygen species, dangerous by-products ...
Cell & Microbiology
Jun 1, 2023
0
1263
When the European Space Agency's Rosetta spacecraft discovered abundant molecular oxygen bursting from comet 67P/Churyumov-Gerasimenko (67P) in 2015, it puzzled scientists. They had never seen a comet emit oxygen, let alone ...
Astronomy
Mar 14, 2022
8
689
