She says the amount of space needed between the plants depends on how big you expect the heads to be.

VOA: special.2009.03.03

This is a big change from earlier models where NASA led and controlled the development of space vehicles.

VOA: special.2010.04.28

So we all went up to the Space Needle to watch the fireworks and this big cloud moved in and covered the Space Needle and so we just kind of watched the clouds and that was it."

VOA: special.2010.07.02