Marc Rayman says Vesta appears to have a layered structure, one that is similar to planets like Earth, Mars and Venus.

VOA: special.2011.07.27

And then you try to create as much surprise and spontaneity and feeling and variation while also respecting that structure."

VOA: special.2011.01.31

This way,they can observe changes in the structure of a deadly organism from one generation to the next.

VOA: special.2010.06.29

They used light-sensitive molecules to turn on and off nerve cells in the deep brain structure of mice.

VOA: special.2009.04.07

Only since the nineteen-sixties have scientists begun to understand that the Earth is a great, living structure.

VOA: special.2010.01.12

His team used a method called transient gene silencing to change the genetic structure of the three mosquito species responsible for spreading malaria.

VOA: special.2010.04.20

"They don't have a country. They don't have their family structure here to support them.

VOA: special.2010.05.03

To be a building, half of a structure's height must have usable floor space.

VOA: special.2010.03.31

"Then the structural engineers take that information and they use it to detail the building in terms of, is this going to be a steel structure?

VOA: special.2011.03.28

This structure further shows how Kahn was able to unite form and function.

VOA: special.2011.07.24

It is considered to be the most unusual geologic structure in the area.

VOA: special.2009.04.15

Their goal was to understand the structure or organization of human genes.

VOA: special.2010.03.23

American architect Richard Morris Hunt was chosen to design this support structure.

VOA: special.2009.06.29

The structure was meant to look like a "flying saucer,"

VOA: special.2009.03.04