Scientists studied the full results of an experiment that smashed a rocket and a probe into a lunar crater last year.
The impacts kicked up large amounts of rock and dust, revealing a suite of fascinating chemical compounds and far more water than anyone had imagined.
A Nasa-led team tells Science magazine that about 155kg of water vapour and water-ice were blown out of the crater.
The researchers’ analysis suggests the lunar regolith, or soil, at the impact site contains 5.6% by weight of water-ice.
“That’s a significant amount of water,” said Anthony Colaprete, from the US space agency’s Ames research centre.
“And it’s in the form of water-ice grains. That’s good news because water-ice is very much a friendly resource to work with. You don’t have to warm it very much; you just have to bring it up to room temperature to pull it out of the dirt real easy.”
The over-use and pollution of Earth’s natural resources have become so extreme that, at current rates, a second planet will be needed by 2030 to meet the world’s needs, a new report warns.
The planet’s 6.8 billion people were living 50% beyond Earth’s sustainable means in 2007, the latest year for which figures are available, according to the biannual “Living Planet” report by WWF, a conservation group previously known as the World Wildlife Fund.
“Even with modest U.N. projections for population growth, consumption and climate change, by 2030 humanity will need the capacity of two Earths to absorb CO2 waste and keep up with natural resource consumption,” the report says, adding that four and a half planets would be needed if everyone used as many resources as the average American.
Zhouqu County, China (CNN) — There were homes here once but Yueyuan village is now a sweeping mud plain. Residents dig through the sludge where they think their bedroom once was.
Maybe there is still a loved one under there. Maybe he or she is still alive, though hopes of finding survivors in China’s massive mudslides are fast dimming.
The death toll Wednesday soared to 1,117, the state-run Xinhua news agency reported, though local residents believe that number to be higher.
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