"There is no scientific basis that people act differently, at least in modern-day society," said Dr. Swarndeep Gill
, who is in his
10th year as a professor of meteorology at California University of Pennsylvania
"There has to be some physical force to affect humans."
However, in earlier times, there was some thought that people acted differently during a full moon, he
"But that may have been because people did not get a good night's sleep because of the brightness of the moon," Gill
explained, "When the back of the moon faces the sun, we see no moon.
As the moon faces the sun, we see all of the moon as we enter a new moon phase."
The lunar cycle is 291/2 days, said Gill
, who teaches an astronomy class to first-year students.
"That is why once in a blue moon, we have two full moons in a month," Gill