Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988esasp.283..193b&link_type=abstract
In its Space Science and Fundamental Physics p 193-203 (SEE N89-11638 02-88)
Astronomy and Astrophysics
Astrophysics
Cosmology, European Space Programs, Spaceborne Astronomy, X Rays, Background Radiation, Comet Nuclei, Dark Matter, Helioseismology, Hubble Constant, Missing Mass (Astrophysics), Neutrinos, Relativity, Soho Mission
Scientific paper
European Space Agency missions involving fundamental science are presented. The dark mass problem and the origin of the X-ray background is tackled with the high throughout X-ray spectroscopy mission XMM; the direct measurement of the Hubble constant through the Sunyaev-Zel'dovich effect combining observations from XMM and from the far infrared submillimetric heterodyne spectroscopy mission; an independent check of the existence of massive neutrinos and of the theory of general relativity through helioseismology on board SOHO; and the evolution of our solar system, galaxy, and maybe of the Universe through the analysis of samples of pristine material extracted from the nucleus of a comet.
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