Apr 26, 2017

Humans alter Earth's chemistry from beyond the grave

It's not only in life that humans leave their mark on Nature. In death, our decomposing corpses alter the chemistry of precious soil, scientists warned on Wednesday. Whether our bodies are buried or cremated, they leach iron, zinc, sulphur, calcium and phosphorus into ground that ...

A face-lift for the moon every 81,000 years

/ Oct 13, 2016

A face-lift for the moon every 81,000 years

The moon is bombarded by so much space rock that its surface gets a complete face-lift every 81,000 years, according to a study released Wednesday based on NASA data. This churn — affecting the top two centimeters (nearly an inch) of mostly loose moon dust ...

SpaceX Dragon cargo ship heads back to Earth

May 11, 2016

SpaceX Dragon cargo ship heads back to Earth

A SpaceX Dragon capsule headed back to Earth on Wednesday, filled with more than 1,678 kilograms (3,700 pounds) of experiment results and cargo from the International Space Station, a NASA TV broadcast showed. It was the first return load from the station in a year, ...