Physics
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002nmgm.meet..438w&link_type=abstract
"THE NINTH MARCEL GROSSMANN MEETING On Recent Developments in Theoretical and Experimental General Relativity, Gravitation and R
Physics
Scientific paper
NASA's Structure and Evolution of the Universe "Cosmic Journeys" roadmap is designed to observe the extremes of gravity throughout the Universe. The Cosmic Journeys missions will travel through the major epochs of the Universe, from the era of galaxy and black hole formation to the beginning of time. These missions will probe the regions surrounding black holes, ultimately obtaining a direct image of the event horizon. They will trace the history of the first crucial seconds after the Big Bang in search for the highest energy processes, where gravity may have been united with the other fundamental forces. They will map the dark matter and investigate the nature of the dark energy that make up 95% of the Universe. The key technologies needed for these challenging endeavors -- sensitive optics, space interferometry and the ability to fly spacecraft in controlled formation -- are currently being developed for space missions today. Cosmic Journeys missions include MAP, which will help determine the shape and density of the universe; Swift, which will catch and study gamma-ray bursts on the fly; GLAST, a next-generation gamma-ray observatory; The Constellation X-ray Observatory, which will use X-ray spectroscopy to map dark matter and measure the spin of black holes; LISA, which will detect gravity waves from merging black holes; all leading to the ultimate mission MAXIM, which in its goal to image a black hole event horizon further stretches the scientific imagination and technology challenges for our field.
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