NASA's Expedition 19 crew captured satellite imagery of man-made object that's slowing down Earth's rotation

NASA’s Expedition 19 mission made history for multiple reasons. Launched in 2009, the crew conducted a range of scientific experiments aboard the International Space Station, worked on complex engineering tasks, and supported Earth observation programs. One of their most impressive observations was the capture of satellite imagery of the Three Gorges Dam in China, a human-made structure that scientists say is having an impact on the planet’s rotation. More

(Source: Yahoo News UK - May 1)