A series of nighttime photos taken by an astronaut aboard the International Space Station showcases the sprawling lights of ...

Nasa scientists on Wednesday released new global maps of Earth at night, providing the clearest yet composite view of the patterns of human settlement across our planet. Satellite images of Earth ...

An experiment carried out at 01:30 every morning for 10 nights has revealed the main sources of artificial light polluting the night sky. The city of Tucson ... His light-from-space experiment ...