The team made the discovery by measuring the speed at which our galaxy is moving through space.

VOA: special.2009.01.20

Quite frankly,I fear the pace at which we have grown may have been too quick."

VOA: special.2010.02.26

The mineral content of clay also affects the temperature level at which it hardens.

VOA: special.2009.09.09

You can actually calculate the angle at which that blood hit your surface."

VOA: special.2010.05.05

In five of them, the rate at which fish are being taken out of the sea has dropped to a level that should let the populations recover.

VOA: special.2009.09.08

There is a point at which fear may turn to insanity;

VOA: special.2009.10.31

And that was not all. "Andrew Jackson's inauguration was the first at which large crowds of American citizens witnessed the swearing-in ceremony, the parade, and went to the White House following the swearing-in ceremony at the Capitol.

VOA: special.2009.01.19

"It will continue to be soft, given the fact the rate at which there is price increase,".

VOA: standard.2009.09.19

"We have detected certainly an increase in the past couple of weeks of the rate at which people are being allowed to return home,"

VOA: standard.2009.10.23

We have stepped away from the brink,". It was the first major Obama presidential news conference at which he was not asked questions about foreign affairs.

VOA: standard.2009.07.23

The FIFA Under-20 World Cup ends Friday, at which point the world's sporting attention shifts to the U-17 World Cup, beginning later this month in Nigeria.

VOA: standard.2009.10.12

Democrats also staged a news conference at which physicians and nurses, as well as Democratic lawmakers who are doctors,spoke in support of the health care reform effort.

VOA: standard.2009.07.21

Hamada's comments follow a meeting of Japan's Security Council Friday, at which senior officials voted to approve the use of missile defense technology to destroy any part of the North Korean rocket that looks like it will land on Japan.

VOA: standard.2009.03.27

But the recession which began at the end of two thousand seven has not hurt all fifty states equally.

VOA: special.2009.05.08