... AJ, 133, 2624-2629 (2007) Hedman et al (about wake structure in Saturn?s A ring) I was fascinated when I first heard about two shephard moon effect that forms Saturn?s ring and later possible meteorites and moons . ...
... Chandra Observations of the Dark Moon and Geocoronal SolarнWind Charge Transfer,'' B.J. Wargelin, M. Markevitch, M. Juda, V. Kharchenko, R. Edgar, & A. Dalgarno, Astrophys. ...
... It is in orbit around the Earth - because the Earth's atmosphere absorbs the X-rays it is built to detect - and is at a much-larger altitude than that used by the Hubble Space Telescope ; at times it is more than one-third the way to the Moon! ...
... It seems unlikely that the supernova which heated this volume of gas was more recent than about 10,000 years ago, or there would be folklore about the explosion, as it must have been brighter than the moon. ...
... Alvan Clark used a 26-inch telescope he'd made for the University of Virginia to confirm the discovery of Mars' moons, made by the other 26-inch telescope at the Naval Observatory, which Clark Sons had delivered several years earlier. academy12 mechanic26 ...