... To evaluate the impact of artificial lighting on huma n hea lth, primarily through disruption of circadian biologica l rhythms or sleep, as well as the impact of hea dla mps, nighttime lighting schemes, and glare on driving safety. ... Circadian regula tion of molecular, dietary, and metabolic signaling mechanisms of huma n breast cancer growth by the nocturnal melatonin signal and the consequences of its disruption by light at night. ... Night shift work, light at night, and risk of breast cancer. ...

Journal of the Amateur Astronomers Association of New York December 2007 Volume 55 Number 12, ISSN 0146-7662 EYEPIECE News of the October 24 ou t b u r st sp r ea d q u ick ly, and observers quickly trained their telescopes, binoculars and eyes on Holmes, which had brightened to nearly second magnitude. ... There was speculation the comet was breaking up, but it turned out the second spot was a background star. ... If we're lucky, this comet could reach 5th magnitude in late December. ...

... It appears that, billions of years after the big bang, following the formation of galaxies, some form of dark energy that is causing the expansion rate to accelerate overtook the Universe. ... The transition from big crunch to big bang automatically replenishes the Universe by creating new matter and radiation. ... By dispelling the myth that the big bang is a beginning of space and time, superstring theory opens up new possibilities for the cosmological history of the Universe. ...