Will you be turning off your lights this Saturday night to observe Earth Hour?

VOA: special.2010.03.22

The lights will stay off for one hour for an event called Earth Hour.

VOA: special.2010.03.22

The researchers say their findings support the idea that a huge explosion or explosions caused fire and pressure powerful enough to kill off life on the Earth.

VOA: special.2009.01.20

I felt alone,cut off from friends, high above the firm earth.

VOA: special.2009.11.15

"This phone will work only for 11 days, when we are near the Earth, but it will be switched off later."

VOA: standard.2010.06.02