02/08/2010

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 ...

'Ribbit Radio' shows frog population estimates are likely flawed

Scientists track amphibian populations because these animals are sensitive to changes in their environment and can serve as "canaries in the coal mine" to give researchers early warnings about pollution or other ecological ...

The evolutionary origins of coral sex

University of Guam Marine Lab associate professor, Alexander Kerr, is senior author of a paper on the evolutionary origins of coral sex published in the Proceedings of the Royal Society B. The paper, "Correlated evolution ...

Instruments selected for Mars

ESA and NASA have selected the scientific instruments for their first joint Mars mission. Scheduled for 2016, it will study the chemical makeup of the martian atmosphere, including methane. Discovered in 2003, methane could ...

Karaoke kings

Karaoke Revolution, a hugely popular video game for Playstation, X-Box and Wii, used new tools recently developed by European research to create phenomenal animations that would otherwise have been nearly impossible. Fans ...

NASA's First Robotic Crew Member To Tweet From Space Station

(PhysOrg.com) -- NASA's Robonaut 2 has no voice but is ready to tell you its story -- in 140 characters or less. The prototype robot will travel to space this fall to give NASA a deeper understanding of human-robotic interaction.

Silicon can be made to melt in reverse

Like an ice cube on a warm day, most materials melt -- that is, change from a solid to a liquid state -- as they get warmer. But a few oddball materials do the reverse: They melt as they get cooler. Now a team of researchers ...

Advocates press Congress on renewable energy standard

Renewable energy advocates are pushing Congress to include a renewable electricity standard in a climate bill that was proposed Tuesday in the Senate, and the idea got a boost this week when 27 Democrats and a Republican ...

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