21.   Madejski said the discovery could help scientists distinguish individual sources of background X-ray radiation in the universe.

22.   New discoveries also helped shape the plans.

23.   Now he wants to repay the favor and he thinks his discovery will help.

24.   Nielsen says nobody knows why glaciers sometimes move so fast but hopes this discovery will help find the secret behind searching glaciers.

25.   Scientists say the discovery may help speed development of drugs to combat the brain-destroying disorder.

26.   That discovery should help in finding more powerful and effective drugs, they said.

27.   That discovery helped to disprove a long-held assumption that early Asian cultures were less advanced than those in Africa.

28.   The astronomers believe their discovery helps change that.

29.   The discovery could help scientists eventually devise treatments to fix bad hearts.

30.   The discovery could help determine the significance of the resin in Mediterranean trade.