1.   And if sufficient quantities of ice are discovered on the moon, as scientists hope, its constituent elements of hydrogen and oxygen could be converted into rocket fuel.

2.   Besides placing the first of what the scientists hope will be a series of de-gassing pipes, they have installed a warning system on each lake.

3.   If stem cell therapy proves as promising as scientists hope, there will inevitably be a need for more varied lines of cells.

4.   In monkeys, the vaccines appear to be working, giving scientists hope they can be used in people.

5.   It is an upwelling of volcanic rock, which the scientists hope will help solve the riddle of where the microbes arise.

6.   LIGO thus became the first large detector in what scientists hope will be an international network of similar instruments on the ground and eventually in space.

7.   Scientists hope unlocking the mysteries of estrogen may someday lead to ways of preventing dementia in women and men.

8.   Scientists hope improved maps of solar weather will someday enable them to predict when the sun is about to erupt with such threatening blasts.

9.   So the isolation of aberrant genes, scientists hope, will be much easier to find here than in the genetic seas of the world at large.

10.   Terminator, many scientists hope, could stop a bacteria combined in the laboratory with a wheat plant from teaming with a wild grass in the field.