ISS crew to embark on two spacewalks in August

Four International Space Station crew members will embark on two spacewalks to install new equipment and replace defective installations, the US space agency NASA said Tuesday.

Brazil court orders work on Amazon dam suspended

A federal court in Brazil has ordered the suspension of work on the huge Belo Monte hydro-electric dam in the Amazon, the third largest dam in the world, a court official said Tuesday.

Dead men DO tell tales

You know you’re living in a culture of celebrity when the Twitter for the president of the United States ranks No. 6, trailing behind rock stars Justin Bieber and Katy Perry by millions of followers.

New insights into how vascular networks form in fish brains

How the intricate network of blood vessels forms within the brain has long fascinated biologists. Though the human brain comprises only 2 percent of body weight it receives up to 15 percent of the cardiac output through this ...

New toilet technology after 150 years of waste (Update)

(AP) — These aren't your typical loos. One uses microwave energy to transform human waste into electricity. Another captures urine and uses it for flushing. And still another turns excrement into charcoal.

Need an expert? Try the crowd

In 1714, the British government held a contest. They offered a large cash prize to anyone who could solve the vexing "longitude problem" — how to determine a ship's east/west position on the open ocean — since none ...

Image: A whole new world for Curiosity

(Phys.org) -- This color-enhanced view -- taken by the High Resolution Imaging Science Experiment (HiRISE) on NASA's Mars Reconnaissance Orbiter as the satellite flew overhead -- shows the terrain around the rover's landing ...

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