The AAS today has over 7, 000 members and six divisions-the Division for Planetary Sciences ( 1968 ), the Division on Dynamical Astronomy ( 1969 ), the High Energy Astrophysics Division ( 1969 ), the Solar Physics Division ( 1969 ), the Historical Astronomy Division ( 1980 ) and the Laboratory Astrophysics Division ( 2012 ).
32.
Weaver's areas of research interest include General X-Ray Astronomy, Active Galactic Nuclei, Starburst Galaxies, and Black Hole formation . including : the American Astronomical Society's Executive Committee of the High Energy Astrophysics Division and Committee for the Status of Women in Astronomy; the International Astronomical Union; the American Physical Society; and the Goddard Employees Welfare Association.
33.
He was the member of International Astronomical Union ( IAU ) and served on many of its committees, including Division VI Commission 34 on " Interstellar Matter ", Division X Commission 40 on " Radio Astronomy ", Division XI Commission 44 " Space & High Energy Astrophysics ", Division VI " Interstellar Matter ", Division X " Radio Astronomy ", and Division IX " Space & High Energy Astrophysics ".
34.
He was the member of International Astronomical Union ( IAU ) and served on many of its committees, including Division VI Commission 34 on " Interstellar Matter ", Division X Commission 40 on " Radio Astronomy ", Division XI Commission 44 " Space & High Energy Astrophysics ", Division VI " Interstellar Matter ", Division X " Radio Astronomy ", and Division IX " Space & High Energy Astrophysics ".
35.
The main research activities done at the observatory concern extragalactic astronomy and cosmology ( large-scale structure of the universe, intergalactic media ), stellar physics, interstellar medium and the galaxy, the physics of the Sun and the solar system ( radioastronomy, coronal plasma, cometary and interplanetary dust ), high energy astrophysics ( supernovae, gamma-ray bursts ), astronomical technologies ( computer systems for data acquisition and control, including remote control, acquisition, handling and analysis of images, supercomputing ) and space astronomy ( development of space technologies and space observations ).
36.
Since 1977 the SRC staff developed, constructed and prepared for launch over 60 instruments and participated in the experiments in more than 50 space missions, for example : ESA s mission CASSINI ( investigation of Saturn and Titan ), INTEGRAL ( space laboratory of high energy astrophysics ), MARS EXPRESS ( Mars orbiter ), ROSETTA ( mission to comet ), VENUS-EXPRESS ( Venus orbiter ), HERSCHEL ( investigation of the coldest and most distant objects in the Universe ), Bepi Colombo ( mission to Mercury ), Roskosmos s KORONAS-F, KORONAS I, KORONAS-FOTON and Phobos-Grunt missions, and CNES DEMETER and TARANIS missions.
37.
Weisskopf is the recipient of numerous awards, including NASA Medals for Exceptional Service in 1992 and for Scientific Achievement in 1999 . He was elected in 1994 as a Fellow of the American Physical Society, which cited his " pioneering work in X-ray polarimetry and time variability studies of cosmic X-ray sources, and his insightful leadership as Project Scientist for the Advanced X-ray Astrophysics Facility . " In 2001, he was selected as a fellow in the International Society for Optical Engineering ( SPIE ) for his significant scientific and technical contributions to the optics community and SPIE . In 2004, together with Dr . H . Tananbaum, he received the Rossi Prize of the High Energy Astrophysics Division of the American Astronomical Society which cited " their vision, dedication, and leadership in the development, testing, and operation of the Chandra X-ray Observatory"
