China Politics | CPC News| Foreign Affairs | World | Opinion| Business | China Military | Society | Life & Culture | Travel | Sports | Science | Education | Photo | Tibet Online | Special Coverage

English >> World

Earth at night 2012 (6)

（People's Daily Online）  14:54, December 06, 2012

The night side of Earth twinkles with light, and the first thing to stand out is the cities. “Nothing tells us more about the spread of humans across the Earth than city lights,” asserts Chris Elvidge, a NOAA scientist who has studied them for 20 years.(Photo/NASA)


【1】 【2】 【3】 【4】 【5】 【6】

（Editor：李想、叶欣）

Photos

Leave your comment

Name:  

Selection for you