Tunisia is observing three days of mourning for people killed in the revolution that ousted the president a week ago.

VOA: special.2011.01.22

After many years of gathering the necessary information, it became possible to learn longitude by observing the stars and the moon.

VOA: special.2010.07.14

Google says it is still observing censorship laws, but it will hold talks with the government in the coming weeks.

VOA: special.2010.01.15

NASA used its Lunar Crater Observing and Sensing Satellite,or LCROSS, to look for water deep beneath the lunar surface.

VOA: special.2009.12.30

Their combined observing power gives the Very Long Baseline Array the ability to see the finest details of any telescope in the world.

VOA: special.2009.01.20

But another NASA project, the Lunar Crater Observing and Sensing Satellite,or LCROSS, could provide answers to what lies deeper beneath the moon's surface.

VOA: special.2009.09.30

For many centuries, navigators hoped they could find longitude by observing the movement of stars at night.

VOA: special.2010.07.14

Last month,the Harpers Ferry National Historical Park and other partners held many programs observing the one hundred fiftieth anniversary of John Brown's raid.

VOA: special.2009.11.06

A navigator had to use complex observing instruments to note the position of the moon and stars.

VOA: special.2010.07.14

The Jouberts have spent thirty years filming and observing lions in the African wild.

VOA: special.2011.03.23

The idea that observing disorder has an effect on people's behavior is not new.

VOA: special.2009.03.03

He began a program of observing not only Mars, but also Venus and Mercury.

VOA: special.2010.07.11

As a boy,Leonardo showed a great interest in drawing,sculpting and observing nature.

VOA: special.2010.09.15

Aylmer sat next to his wife, observing her and taking notes.

VOA: special.2009.09.26