News tagged with atmospheric oxygen levels

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

Taking X-rays of CO2

As CO2 levels in the Earth's atmosphere top 400 parts per million, options such as storing the greenhouse gas in porous sandstone rock formations found in abundance on the sea floor are of increasing interest. But how do ...

dateMay 14, 2013 in Environment
shares0 comments 0

Robot gliders roam seas

( —Once the robotic gliders scour the ocean searching for potential harm to sea life, the data is sent to David Caron, professor of biological sciences in USC Dornsife, and other marine biologists. They use the ...

dateMay 03, 2013 in Earth Sciences
shares0 comments 0

Ancient Earth crust stored in deep mantle

Scientists have long believed that lava erupted from certain oceanic volcanoes contains materials from the early Earth's crust. But decisive evidence for this phenomenon has proven elusive. New research from a team including ...

dateApr 24, 2013 in Earth Sciences
shares0 comments 0

Mineral diversity clue to early Earth chemistry

Mineral evolution is a new way to look at our planet's history. It's the study of the increasing diversity and characteristics of Earth's near-surface minerals, from the dozen that arrived on interstellar dust particles when ...

dateFeb 28, 2013 in Earth Sciences
shares0 comments 0