... A non-linear relationship is observed between the sky brightness on clear and overcast nights, with a change in behavior near the rural to urban landuse transition. ... The great variation in skyglow radiance observed from site-to-site and with changing meteorological conditions underlines the need for a long-term international monitoring program. he introduction of artificial light has caused an unprecedented disruption to the nighttime environment over large areas of the Earth. ... Data processing...

... Press release for Jan. 28, 2001 a.m. (Moscow time) . The Station "Mir" and cargo ship "ProgressM1-5"operations scheduled for Jan. 27-28 completed. ... The MCS (motion control system) is in free drift. ... The Station "Mir" and cargo ship "ProgressM1-5" onboard systems checkout is shceduled for 28-29 Jan. On Jan 25"Progress M-43' undocked the Station at 08.20 a.m. (Moscow time), its de-orbit is scheduled for Jan.29.The calculated time of jets firing for breaking - 05,12 a.m. (Moscow time) . ...

... Moon Phase below . ... ARTICLE: Why the moon always shows us the same face . ... Before you continue reading, you should know that this was not always the case, i.e. the Moon once was rotating with respect to the Earth, so that on every night a terrestrial observer (if there was one, because this was long, long before mankind appeared on our planet, and even before any major animals had appeared) saw another face of the Moon. ... Figure 1 (not to scale) shows how we can imagine the system Earth-Moon...

... A rough estimation is that in the United States there is one planetarium per 100,000 population, ranging in size from the Hayden Planetarium's 20-meter dome seating 430 people, to three-meter inflatable portable domes where children sit on the floor. ... Together dblo associates make a huge impact in the architecture, interior design and development arena in London. ... With the holidays around the corner what better way to spoil your family than with your very own private home cinema. ...