61.   Scientists think the stem cells might be able to replace diseased or hurt cells with healthy new cells.

62.   Scientists think they can make DNA work for them by using the same genetic machinery that generates living organisms to solve mathematical problems.

63.   Scientists think those may be ideal places to seek evidence of life.

64.   Scientists thought that the acid water would dilute the radioactivity and the ground would filter it.

65.   Scientists sometimes think of the mind as an all-purpose learning machine, equally receptive to any kind of information.

66.   Scientists think it originated in scrapie, a disease that infects sheep.

67.   Scientists think that since decaying tissue contains more water than healthy tissue, the laser has a selective effect that mainly vaporizes decay.

68.   Scientists think the distinctive patterns of the fracture lines reveal their origins and confirm the notion of a Europan ocean.

69.   Scientists think the telescope may also produce critical discoveries relating to some of the most formidable quests of modern cosmology.

70.   Scientists think the transplanted material may include stem cells.