News tagged with oxygen levels

Related topics:

Scientists identify 'molecular fossil' in fungi

(Phys.org) —All but a few eukaryotes die without oxygen, and they respond dynamically to changes in the level of oxygen available to them. UCD scientists used genetic analysis to pinpoint an evolutionary switch in regulating ...

dateJan 19, 2014 in Biotechnology
shares0 comments 0

The rise and fall of oxygen

How long has Earth's atmosphere included oxygen? A recent paper suggests low levels of oxygen appeared in the atmosphere approximately 2.95 billion years ago. That's about 550 million years earlier than previously thought.

dateDec 11, 2013 in Earth Sciences
shares0 comments 0

Could dying planets harbor life?

If life does exist anywhere else in the universe, it may only be fleeting. Now scientists are researching how signs of life might look on dying planets.

dateNov 25, 2013 in Astronomy
shares0 comments 2