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After the successful completion of all the major mission objectives, the orbit of Chandrayaan-1 spacecraft, which was at a height of 100 km from the lunar surface since November 2008, has now been raised to 200 km.
Until now, the gravity anomaly of the far side of the Moon has not been understood well. The gravity anomaly, which was obscure before, has been clearly revealed through observations by the Kaguya mission. For instance, the gravity anomaly of a basin on the far side is found to be characterized by a negative anomaly in a ring like the Apollo basin. On the other hand, the gravity anomaly of the basin on the near side is uniformly positive over the region such as with the Mare Serenitatis. Thus, the clear difference in gravity anomaly on the near side and the far side has been newly discovered and this fact brings a different story about the structure of the underground and the history of the evolution of the far side and near side of the Moon.
Gravity anomaly: The lunar gravity field is not homogenous.
Dichotomy of the Moon: Between the near side and the far side, clear asymmetry is called the "Dichotomy of the Moon" as in the thickness of the lunar crust and the distribution of the lunar Maria.
Thus, the clear difference in gravity anomaly on the near side and the far side has been newly discovered and this fact brings a different story about the structure of the underground and the history of the evolution of the far side and near side of the Moon.
For example, the Mare Serenitatis, the representative basin on the near side, shows a strong positive (red color) gravity anomaly at the center of the basin
Mare Serenitatis is one example of a mascon, an anomalous gravitational region on the moon.
Mare Serenitatis is also mentioned in Arthur C. Clarke's The Sentinel.
The Sentinel (short story)
The story deals with the discovery of an artifact on Earth's Moon left behind eons ago by ancient aliens. The object is made of a polished mineral and tetrahedral in shape, and is surrounded by a spherical forcefield
The spacecraft in this higher altitude will enable further studies on orbit perturbations, gravitational field variation of the Moon and also enable imaging lunar surface with a wider swath.
gravitational field variation
Giant Impact hypothesis Main article: Giant impact hypothesis The prevailing hypothesis today is that the Earth–Moon system formed as a result of a giant impact. A Mars-sized body (labelled "Theia") is believed to have hit the proto-Earth, blasting sufficient material into orbit around the proto-Earth to form the Moon through accretion. As accretion is the process by which all planetary bodies are believed to have formed, giant impacts are thought to have affected most if not all planets. Computer simulations modelling a giant impact are consistent with measurements of the angular momentum of the Earth–Moon system, as well as the small size of the lunar core. Unresolved questions regarding this theory concern the determination of the relative sizes of the proto-Earth and Theia and of how much material from these two bodies formed the Moon.
Originally posted by Totalstranger
yeah but Lear thinks there is semi-earth like gravity, and there are bases there. did India see any of that? I guess it doesnt matter because there will soon be a new, dummy account by none other than Lear himself blowing this out of proportion.
so nice find. now find a base, vehicles, or anything....anything
Originally posted by chucktaggart
The powers that be have technology to disguise bases on Earth to not be seen by satellites, you don't think they would use this same technology on the Moon?
[edit on 28-5-2009 by chucktaggart]