1.   This is a surprise because the leading theories of cosmic evolution say the distribution of galaxies should be random.

2.   A leading theory now is that multiple sclerosis starts when the immune system gears up to fight a virus.

3.   A leading theory is that a system that dissipates static electricity had a flaw that allowed a charge to collect and then produce a spark.

4.   A leading theory is that abnormal variants of a certain protein cause the diseases.

5.   A leading theory is that an extended lockout probably means Pippen will stay parked in Chicago.

6.   But a leading theory has emerged as teams have sifted through the wreckage, examined photographs and videos and run computer simulations on aspects of the disaster.

7.   But he said he has heard there are two leading theories about why Jusino was killed.

8.   For months, the leading theory among NTSB officials in charge of the investigation has been that a spark of static electricity triggered the explosion of fuel vapors.

9.   For women, the leading theory is that declining levels of female hormones at menopause trigger the sprouting of facial hair.

10.   He said the leading theory is that menstruation can be triggered by a certain amount and type of body fat.