News tagged with atmospheric oxygen

Venus has an ozone layer too: probe finds

(PhysOrg.com) -- ESA's Venus Express spacecraft has discovered an ozone layer high in the atmosphere of Venus. Comparing its properties with those of the equivalent layers on Earth and Mars will help astronomers ...

Oct 06, 2011
5 / 5 (13) 0 | with audio podcast

Raising giant insects to unravel ancient oxygen

The giant dragonflies of ancient Earth with wingspans of up to 70 centimeters (28 inches) are generally attributed to higher oxygen atmospheric levels in the atmosphere in the past. New experiments in raising modern insects ...

Oct 29, 2010
4.5 / 5 (15) 7 | with audio podcast

Oxygen fuels the fires of time

Variations in the Earth's atmospheric oxygen levels are thought to be closely linked to the evolution of life, with strong feedbacks between uni- and multicellular life and oxygen. Over the past 400 million years the level ...

Aug 02, 2010
4.8 / 5 (14) 29 | with audio podcast

Oceans stem the tide of evolution

(PhysOrg.com) -- Toxic seas may have been responsible for delaying the evolution of life on Earth by 1 billion years, experts at Newcastle University have revealed.

Jun 21, 2010
4.6 / 5 (9) 1 | with audio podcast