We know that the generally accepted theories of gravity and quantum mechanics are fundamentally incompatible. Thus, when we try to combine these theories, we must beware of physical pitfalls. Modern theories of quantum gravity are trying to overcome these problems. Any ideas must confront the present agreement with general relativity, but yet be free to wonder about not understood phenomena, such as the dark matter problem and the anomalous spacecraft data which we announce here. This all has led some "intrepid" theorists to consider a new gravitational regime, that of antimatter. Even more "daring" experimentalists are attempting, or considering attempting, the measurement of the gravitational force on antimatter, including low-energy antiprotons and, perhaps most enticing, antihydrogen.

Date of creation, presentation, or exhibit



"Theoretical Motivation for Gravitation Experiments on Ultra-Low Energy Antiprotons and Antihydrogen," Proceedings of LEAP'94: the Third Biennial Conference on Low-Energy Antiproton Physics. Held in Bled, Slovenia: 12-17 September 1994. AND also archived at: arXiv:hep-ph/9412234 v1 5 Dec 1994 Their research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, and was sponsored by the Pioneer Project Office, NASA/Ames Research Center, LOA PPO-17, through an agreement with the National Aeronautics and Space Administration.Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works in February 2014.

Document Type

Conference Proceeding

Department, Program, or Center

School of Physics and Astronomy (COS)


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